【游侠C&C工作组】凯恩之怒进阶技巧指导III－6.30更新15#

hfmouse

相关链接： 凯恩之怒进阶技巧指导I
相关链接： 凯恩之怒进阶技巧指导II



地图意识和侦察

英文作者：Sub

尽管在CC3的世界里有多种多样取胜的战略战术，这篇指导对大家还是非常有意义的。这里有一些方法可以让你避免陷入困境，经常探索地图可以将敌人偷袭的风险降到最低。

首先，让我们谈谈小地图。尽管在小地图上很难分辨单个单位，它仍然是非常有用的工具，而且不该被忽略。相比TW，KW的战争之雾有所加强，这使得侦察变得更加必要。消除战争之雾让你可以更好的掌握敌人的动向以便提前防备。

另一个好工具是你的空格键。当有事发生并引起你的注意的时候，比如“发现敌人”“单位被攻击”“发现敌军特种兵”，通过按空格键可以让你自动跳到发生事件的地点。

让我们谈谈预料。如果你的对手是GDI，你要小心你的矿车被空袭。如果你的对手是Scrin，要小心侧翼攻击的蜈蚣。一般来说，你会得到通报，并且除非是敌人用单个单位攻击你的基地，你应该可以很容易的在小地图上看到敌人的部队。在游戏中，你一般不需要不停地关注你的小地图。迅速的运用鼠标，永远不要呆呆的等着东西建造，在整个游戏中要眼观六路耳听八方，这样做的越好，你就越不可能输掉。不过，话说回来，如果你没有正确的侦察，这一切也许都太晚了。

在KW中，侦察甚至比阵营差异和整体建造顺序还要重要。早期侦察是最重要的，在侦察的同时，你也拥有了早期地图的控制权。

驻守建筑在整个游戏进程中都是非常重要的，当建筑可用的时候，它们应该被用来侦察。它们可以增加你在战争之雾中的视野范围，使你可以更早的发现进犯的敌军，为你赢得额外的时间来抵抗。

发现你的对手在做什么是至关重要的，因为这样可以给你提供时间和正确的方法来抵抗。在游戏早期，每个阵营都有不同的适合抵抗的单位。所有Nod阵营都有四驱车和攻击摩托，它们非常适合侦察和早期骚扰。GDI有斗犬，它的速度为GDI提供了一个最佳的早期骚扰侦察工具。另一方面，Scrin，在早期侦察上略显劣势。不过正确使用蜂群利用它们的速度可以轻松打入敌人基地。


你的部队在行进中可以去除战争之雾，在战争之雾再次覆盖之前，你有30秒的时间可以观看地形。这就是说，持续不断的侦察地图是非常重要的。这里有些简单的选择：


对于GDI

GDI的空军行动迅速机动灵活。好好利用这个优势，如果你给敌人喘息之机，要确保注意你的侧翼。另外，也不要忘了使用雷达扫描技能，只需花费500就可以让你指导敌人正在做什么是非常值得的。

对于Nod

在早期游戏中，Nod应该好好利用四驱车。它们便宜，却是侦察敌人基地的好东西。在游戏中期，在你不能轻易派出侦察部队的时候，可以复制一辆矿车（除非你是黑手），这是便宜的得到隐形侦察部队的好方法，经济实惠，物超所值。

对于Scrin

还是一样，Scrin天生处于劣势，不过你需要确保你的部队总是在移动着。定时让你的蜂群在地图上游荡下，以便侦察敌人的科技等级和部队的部署位置。

你越好的掌握敌人的生产力和单位生产的情报，就越容易对抗他们。也就是说，当你发现你的敌人想要侦察你时，不论是在游戏早期还是后期，把它消灭掉，优先保证自己的神秘，以便出奇制胜。


选另外的路

普通侦察路线 | 可选侦察路线

侦察单位都是行动迅速的，不过他们的装甲像纸一样薄，在大多数情况下，如果它们径直冲入敌军基地，那么它们大多会在得到有用信息之前就被敌军歼灭。一个比较好的使用侦察单位的方法是选择其他可选的道路。不要让你的部队沿着主要战斗方向或是常规侦察路线；试着让它们潜入到敌人基地后面以得到最大的效果。这种简单的战略可以很大程度上提高它们的存活能力，以便得到更多敌人的情报。

附：英文原文

With even more ways to pull out wins and strategies in the world of CnC3, the community is in dire need of this TotW. There are a few ways to easily check yourself before you wreck yourself, and navigate your way around the map fluently and minimize the risk of allowing a sneak attack.

First, lets sit down and talk about the mini map. Although it is very difficult to depict single units, it is still a useful tool and it shouldn’t be neglected. The fog of war is more intense in Kanes Wrath than it was in Tiberium Wars, which makes scouting even more of a necessity. Revealing the Fog of War allows you to see your opponents units trying to make a move.

Another nice tool you are given is your spacebar. If anything happens and grants you notification i.e. “enemy spotted” “Unit under attack” “enemy commando detected” by pressing the spacebar you will automatically be jumped to the location of this event.

Lets talk a bit about anticipation. If your opponent is GDI, you need to look for air on your harvesters. If your opponent is a variant of Scrin, look out for flanking Mechapedes. Generally you will be notified, but unless it is just a single unit barreling towards your base, you should have no trouble seeing the incoming unit on your mini map. In a game you generally shouldn't have to constantly consult your minimap. Be quick with your mouse and never sit idol waiting for something to build (unless your microing) keep an open eye and ear throughout the game and the better this is done, the less you will be wondering why you lost. However, going back to fog of war, if you aren’t properly scouting, it might be too late.

In Kanes Wrath, scouting is even more important given the faction diversity and overall options in building your arsenal. Early game scouting is generally the most important and in scouting, you are also setting up early game map control.

Garrisoning Buildings is very important throughout games, and when buildings are available they should be utilized for scouting. They increase the range lifted off the fog of war and allow you to see your enemy incoming and have some extra time to counter it.

It is crucial that you find what your opponent is doing so you are given all the time and options necessary to counter it. In the early game, each faction has different units that do a good job countering. All Nod factions have the Raider Buggy and Attack Bikes, which are great for scouting, and early game harassment. GDI has the Pitbull, and its speed gives GDI an early harassment and scouting tool. Scrin, on the other hand, got the short end of the stick in regards to early game scouting. Make good use of Buzzers and their speed allow them to work their way into your opponents base.

As your unit moves along it reveals the fog of war and gives you 30 seconds of peeking time before it is covered again. That said, it is very important that you are constantly scouting the map. Here are a few easy options:

With GDI

GDI's air is very fast and maneuverable. Use this to your advantage and be sure that if you are giving your opponent time to breathe, that you watch your flanks. Dont forget to use your Radar Scan either, at only a measly $500 you can see what your enemy is up to instantly.

With Nod

In the early game, Nod should make use of its Raider Buggies. They are cheap, and a great way to scout your opponents base. In the Mid game, when you can't squeeze a light scout by your opponent, try using your decoy army on a harvester. (unless you are BH) It is a cheap way to stealthily scout your opponent that is very cost effective and well worth the sticker price.

With Scrin

Yet again, Scrin receives the short end of the stick, but you need to be sure you are always moving your army around. Keep Buzzers roaming the map periodically to check in on your opponents teching process and where his units are located.

The better control you have over your opponents productivity and unit production, the better your odds are when it comes to countering his arsenal. That said, when you see your opponent trying to scout you, weather it be early game or late game; stop his scout in its tracks and make it a priority to keep the element of surprise in your favor.

Taking the alternative route

Scouts may be fast, but their armor is almost paper and in most cases if they run into an enemy base head on, then the chances are they will be annihilated before getting any vital info. A good way to use your scouts is to take the alternative route. Dont send your units along the main battle fronts or regular scouting paths; try and sneak them behind the enemy base for maximum effect. This simple strategy can greatly improve their survivability and get you more intel on your opponent.


[ 本帖最后由 hfmouse 于 2008-7-2 19:40 编辑 ]

percylee

顶下白老鼠～不过CC系列里前期侦查貌似没有暴雪系的游戏那么重要～大概是因为每个阵营在每个发展阶段的优势兵种太过明显～而且基本成型就压过去了～EA的开分基政策使得偷开第二甚至第三基地几乎不可能不被发现。

shfxxer

同意，优势兵种还算比较固定的，相比之下我的侦查更偏向于偷矿车和在行军部队上放个尊王之怒啥的

mephston

偶是防御控呃，偶只喜欢在家造防御，侦查基本就靠雷达波的，或是搞队初级兵，直接点对角地图边缘。。。。

hfmouse

引导射击

英文作者： Suprise


学会如何引导你的部队射击在CC3中是非常重要的，对于一些特定的单位来说，这对取胜是至关重要的。如果你还不能正确操纵炮兵单位，ZOCOM奥卡，或者任何其他单位瞄准射击的话，这篇指导会让你明白强制攻击和引导射击的精妙。

=>移动方向

正如你看到的，毁灭战舰的飞盘没有打中重装mm，而是打在了红色方框所指的区域。这是因为它们用的普通攻击，而它们攻击的位置是重装mm原来在的位置，而不是她们移动的位置。

=>移动方向

用强制攻击（Ctrl＋A），让毁灭战舰攻击红色X的位置。飞盘将在红框内的重装mm到达目标区域前落地，所以可以对她们造成伤害。记住在每轮攻击后取消强制攻击（热键S），否则战舰们将继续攻击同一地点。

如上图，你可以弹道一个老兵级的蝎子正在撤回基地。要用奥卡打到它（榴弹兵可以造成一点额外的伤害），你需要强制攻击蓝色方框所指的位置。

在最后的例子中，你可以看到，幽魂炮正在瞄准一队步兵。幽魂炮的攻击速度特别慢，而且炮弹飞得也不是非常快。要想打到目标，你需要强制攻击蓝色方框的位置以便正好打到这队步兵的中心。记住相比其他炮兵单位，幽魂炮需要更大的提前量。

附：英文原文


Learning how to lead shots with your units in CnC3 is very important, and can be vital to the success of certain units. If you are having trouble properly controlling Artillery units, ZOCOM Orcas, or any other unit you are having trouble targeting, this TotW will explain the art of force firing and leading your shots.

As you can see; the Devastator Warship's discs are missing the Zone Raiders and hitting the area indicated by the red square. This is because they were ordered to attack normally, so they fire where the Zone Raiders were as the shot was fired and not at the direction where they are moving.

Using force fire (Ctrl + A), both Devastator Warships fired towards the red X. The discs arrived by the time the Zone Raiders in the box entered the area and therefore they were destroyed. Remember to cancel the force fire order (hotkey S) after every volley, or the Warships will continue to attack the same spot.

Above you can see a veteran scorpion tank retreating toward its base. To hit this tank with Orcas (and grenadiers for a little extra damage) You will need to force attack into the blue square.

In this last example you can see that this specter is trying to target a group of infantry. Specters are especially slow at firing, and the shell itself is not very fast. To hit the target, you will need to force attack in the blue box to hit the center of the infantry group. Remember that you need to lead more generously with specters than with most artillery units in the game.

歸去來兮

先支持再看！好多文字啊

lin107zero

老鼠辛苦了, 每周都坚持

hfmouse

呼叫运输机

英文作者：Sub

呼叫运输机是非常重要的工具，它在GDI和Nod展开机场后就可以使用。运输机可以用来远距离运输工程师进行中期骚扰，还可以运送特种兵。

工程师

KW对工程师的修改，迫使那些占建筑流的玩家要多动动脑筋来实行战术了。不过，尽管有3秒的占领延迟，工程师仍然是非常有用的。呼叫运输机仍旧是游戏中后期使用工程师的非常有效方式。最好的使用这项升级的方法首先是要确保你使用的时候，敌人不会侦察到你的运输机。其次，可以利用地图的边缘作为你的优势，微操你的运输机和单位对取得胜利是至关重要的。确保当你降落到敌人基地的时候，你已经引走了敌人的注意力或是已经在某些地方对敌方施压了。当运输机降落时，你应该让它降落在敌方建筑附近。

特种兵

这里有一些关于特种兵使用呼叫运输机的额外提示。那就是你的敌人在特种兵在它的基地内着陆前（如果成功着陆的话，译者：汗。。）不会得到任何警告。微操运输机的方式类似于工程师部分，重要的是你要小心防空，也要注意放置特种兵的位置。

微操运输机

当你使用这个工具时，要时刻记住每个运输机的血量。它非常少，这就是说你需要确保它们远离敌人的炮火。你应该让运输机飞过“非战斗”区域，或是那些不利于任何可能威胁到你的运输机的单位行动的地形。在着陆时，要时刻记住那5秒的卸载时间。你要确保在卸载的同时，已经尽你所能牵制住敌人的注意力。确保你的运输机在潜入的时候，尽量不被敌方雷达发现。

附：英文原文：

Call for Transport is a very important tool that both GDI and Nod can use once they deploy an Airfield. The transport can be used to transport Engineers long distances, provide some mid game harassment, and push around Commandos.


Engineers

With the nerf of Engineers in Kanes Wrath forces those of you who love capturing buildings to get a bit more creative in doing so. However, despite their 3 second capturing delay, Engineers are still very useful. The Call for Transport is still a very effective option to use in the mid/late game scenario for your Engineers. The best ways to use this upgrade is to be sure you can do it without your opponent scouting your transport. Second, use the sides of the map to your advantage and microing the Call for transport with your units is crucial to success. Be sure that when bringing the Drop into your opponents base, you are distracting him and putting pressure elsewhere. When dropping off the transport you should make the drop off point near your opponents building.


Commandos


There are a few perks about using the Call for Transport with the commando. Namely, your opponent won't get the warning until the commando has landed (hopefully) in his base. Micro'ing the Transport is very similar to that of the Engineer, and it is important that you watch for AA, and are careful with the placement of the Commando once you enter your opponents base.


Microing the Transport

When you are utilizing this tool, keep in mind the health that each Transport has. It is very little, and that said you need to be sure it stays away from enemy fire. You should fly the transport over "non-action" zones, and over terrain difficult for any opposition to your Transport. When you are dropping off your transport, keep in mind the 5 second unload time. You will want to be sure you are distracting your opponent to the best of your ability when you are unloading/entering your opponents base. Be sure that you move in so that your opponents radar won't warn him of the incoming Transport.

极品西瓜刀

好东西啊 厉害！！！

又学到一些了

pangge2208

运输机的问题啊......
实在不行装个apc同时里边塞点重装兵
能对地，掌握好时机，成活几率很大

softboy86

顶一下老鼠的战术指导~~~                           

hfmouse

矿车微操

英文作者：L3g3nd4ry


在游戏中，没有比在早期损失一辆矿车更让人恼火的事情了。大多数玩家都贯彻那句名言“进攻是最好的防守”，不过这将会让你的矿车处于无防备状态。比起这个，另外一句名言更好一些“能活下来才是最好的防守”。

有时候在你不能用主流战斗单位来防御你的矿车时，按照下面的技巧做，会为你赢得宝贵的时间来延缓你的对手消灭你的矿车。尽管这样也许不能救你的矿车，但至少比坐以待毙强。

首先，要记住也要侦察敌军看他在造什么。如果你看到大量的攻击摩托，斗犬或是掠夺者，那么就等着听“矿车被攻击”的EVA警告吧。总是要确保你的基地里有些驻防的的单位，以防万一遭到偷袭。以下三种微操技巧将帮助你保证矿车的安全。

绕圈掩护

当敌人攻击一个单独的矿车时，让它跑向最近的重工或矿厂。这里的关键是绕着建筑转圈跑，一直转到敌人的攻击被挡住。这个技巧在对付单独目标单位（比如攻击摩托）时非常有效，它确实可以给你额外的几秒时间召回（或建造）抵抗单位。

屏蔽

在你说这个技巧只对收割者17有用之前，我先说，不是这样的。屏蔽技巧包括使用便宜的建筑，像兵营或电厂之类，快速建好放在矿车和敌人之间。这么做要确保你在建造菜单里有一个造好的建筑，然后一旦那些骚扰单位攻击你的矿车就立刻把那个建筑放到他们前面，然后让矿车逃跑。如此反复。通过保持稳定的肉盾供应来阻挡敌人的进攻可以很有效的延缓它们，以便你的部队可以把它们干掉。此外，如果你有两条建造通道的话，你可以一次放置两个建筑来制造更大的阻碍。如果可能，最好用那些攀科技需要的建筑，慢慢延伸到另一片泰矿。这种战术是一石二鸟的。（译者。。汗。。成语）


两个一组（格斗术语）

这是个非常冒险也非常高难度的技巧。当你的矿车遭到袭击时，让它跑向最近的重工。现在可以用技巧了：快速选定你的重工让修理机器人修理矿车，同时用另一辆矿车来挡住敌人的单位，以便受伤的矿车可以被修理。这里的关键是让你的对手把目标从受伤矿车转换到肉盾矿车上。这可以让你受伤的矿车修理到满血然后迅速换下肉盾矿车，如此反复。同时记住用绕圈掩护的方法来保证机动性。

综上

• 如果你希望保证你的经济，那么没有为矿车提供防御不是个好主意。
• 如果你的矿车被攻击了，不要让它坐等援军。用上面的机动方法来赢得时间。
• 多练习会收获利息的，掌握这些技巧会让你成为更高的高手~~

附：英文原文：

Nothing can be more annoying than losing a harvester early on. Most players live by the motto "the best defense is a good offense," but this can leave your harvesters wide open for attack. Its better to follow the mantra "the best defense is the one that exists".

There will come a time when you won't be able to use mainstream combat units to defend your harvesters - following these techniques will buy you valuable time to delay your opponent from killing your harvesters. Although this may not save your harvester, its better than leaving it as a sitting duck.

First and foremost, remember to scout the enemy to see what his forces are up too. If you see a lot of Attack Bikes, Pitbulls or Ravagers then expect that "Harvester under attack" warning. Always make sure you have some units stationed in your base, in case of a sneaky attack. The following three micro techniques will help you keep your harvesters safe.

Circling Cover

When the enemy attacks a single harvester, run it to nearest War Factory or Refinery. The key here is to circle around the building as many times necessary to block the attack units from reaching your harvester. This technique is very effective against single target hunters like Attack Bikes and can really give you that extra few seconds for you to bring back (or build) the cavalry.

Shielding

Before you say this is for Reaper-17 only, its not. Shielding involves using cheap structures, like a Barracks or Powerplants, to be quickly constructed between the enemy forces and your harvester. To do this make sure you have a structure queued in your construction tab and as soon as those harassers attack your harvester build the structure right in front of them and run away. Rinse, wash, repeat. By keeping a steady supply of shields to detour the enemy attack you can effective delay them for your forces to take them out. Additionally you can place 2 buildings at once to create a larger obstacle if you have a second build queue. If possible, its best to use buildings that are needed for teching up, and crawl in the direction of another tiberium field. That tactic takes care of two birds with one stone.

Tag Team

This is a very risky and very hard to use technique. When your harvester takes damage run towards your nearest War Factory. Now here comes the tricky bit: quickly select your War Factory and command your drones to focus on repairing it, meanwhile use another harvester to block the enemy units so the damaged harvester can get repaired. The key here is to get your opponent to swap targets from the damaged harvester to the 'shield' harvester. This will allow your damaged harvester to be repaired to full health so it can quickly swap places with the shield harvester and thus the cycle repeats itself. Also remember to use the Circling Cover method to compliment this maneuver.

Summary

• Having no defense for your harvesters isn't a good idea if you want to keep your economy afloat
• If your harvesters are being attacked, don't sit around waiting for units to get there. Perform these maneuvers to grant you more time
• Practice will reap dividends and mastering these techniques will make you a much more skillful player

hfmouse

基地防御的摆放

英文作者：L3g3nd4ry


基地防御在KW中扮演着比TW更加重要的战术角色，在正确的时间把它们布置到正确的地点可以让你赢得战斗。许多玩家大都不假思索的暴防御，而不管它们是否有战术价值或战略位置，不过通过这篇指导加上一些练习，你可以让你的对手在对付这些防御时切实尝到苦头。要记住，基地防御不能替代单位，不过他们确实很重要。


塔型防御

瞭望塔，光明石碑，风暴柱这类防御都有一个共性：拥有可以超越建筑射击的能力。运用这个优势把他们摆放在厚血建筑或是临时肉盾建筑的后面，特别是电厂，做肉盾的同时还可以维持它们的持续性。敌人不得不面临是应该顶着攻击侧翼迂回还是试图敲掉肉盾让自己暴露在你部队的枪口下的抉择。这个简单有效的战术可以最大限度的节省你重建防御的花费。


Nod基地防御

切割者，激光和SAM炮塔是兄弟会的标志这是由于它们可以灵活布置。放置3个塔围绕一个中心节点是很简单的，不过使用一些小的技巧可以让它们变得更加致命。这里有两个战术你可以使用。第一是“意大利面”阵型。这需要把3－6个塔台摆成一面交错的墙，对于常规单位来说，它是很难逾越的。这种战术非常适于前线防御，多塔同时射击会迫使你的敌人重新考虑是否继续派遣部队送死。不要忘记在指挥中心研究第四炮塔，这可以为你提供额外的火力。

第二种战术是“鬼”阵型。这可以切实帮助你的炮塔存活的久一些以节省你的花费。最好的使用方法是找一个盾建筑，然后把中心放在它的后面，把炮塔摆在前面或者反方向上。因为你把炮塔摆放在建筑间，它们看起来就像没有中心一样，这样干掉它们就非常困难。另外，你也可以利用悬崖来布置你的炮塔，把它们放在除了空军和炮兵以外其他单位非常难达到的地方。


防空防御

AA枪，Sam导弹塔和飞盘发射器基本上可以放置在你基地的任何地方，不过再次提醒，要稍微考虑下它们的位置以便可以最大限度的发挥功效。试着估计哪里是敌军最有可能派遣空军的地方。这些关键目标是矿车，高科，电厂，重工和地面防御。1－2个AA防御就很适合对抗奥卡，毒液，锤头和行星毁灭战舰了，不过对付火鹰，风暴骑士和眩晕还不够。3－4个防空互相覆盖掩护就可以有效的阻止任何舰队，从而存活的更久。



其他

不幸的是，其他炮塔比如守护者，光子炮，音波炮和蜂巢没有特别的方式来布置，不过仍然有一个技巧可以使用。不要在敌人出来前摆放，可以等它们进入包围圈后再摆放。一个从背后突然出现的音波炮可以对敌军造成毁灭性的打击，可以消灭任何靠近的东西。要等敌人进入你的建筑半径后再放置它，还要确保你有足够的电力来保证它的运行。


附：英文原文

Base Defenses have a greater tactical role in Kane's Wrath than Tiberium Wars and placing them in the right spot at the right time can win you the battle. Many players tend to spam them without thinking if it will have any tactical value or strategic positioning, but with this guide and a little experience you can really give your opponent a tough time taking down those defenses. Do remember that base defenses are no substitute for units but again they do have their importance.


Tower Defenses

Watch Towers, Obelisks of Light and Storm Columns all have one thing in common: the ability to shoot over buildings. Use this to your advantage and place them behind high hit points structures or build temporary meatshield structures; preferably Power Plants that help sustain them. The enemy will have to decide whether he should flank the defenses and risk his units being surrounded or try and plow through the meatshield and being exposed to your army. This simple and effective strategy can ultimately save you the cost of rebuilding these defenses.


Nod Base Defenses

The Shredder, Laser and SAM turret are a trademark of The Brotherhood because of their flexible positioning. Placing 3 turrets around a central hub is easy, but with a few simple tricks you can make them even more deadly. There are two tactics you can use. First there is the "Spaghetti" formation. This will require placing 3-6 turrets into an interlocking wall which is very hard to penetrate with conventional units. This dastardly tactic is perfect for your front line defense and the multiple turrets firing at once may make your opponent reconsider before sending in his forces. Don’t forget to research Quad Turrets at your Operation Center to give you an extra firepower.

Secondly there is the "Ghost" formation. This will really help your turrets last longer and save you money. The best way to use this is to find a shield structure and place the hub behind it, now place the turret in front of it or in opposite directions. Because you're placing the turrets through the building they almost look hubless and killing it will be very tricky. Alternatively you use cliffs to build your turrets in very hard-to-reach positions which only artillery or air units can reach.


Anti-Air Defenses

AA Batteries, Sam Turrets and Plasma Disc Launchers can be built practically anywhere in your base, but again with a little thought of positioning they can perform at their very best. Try and estimate where the enemy would most like send air units. The key targets are Harvesters, Tech Centers, Power Plants, War Factories and ground base defenses. One or two AA Defenses may be suitable against Orcas, Venoms, Hammerheads and PACS but certainly not Firehawks, Stormriders or Vertigos. 3 to 4 AA defenses covering each other each other can effectively stop any squadron and certainly survive longer.

All of the Rest

Unfortunately the other turrets like the Guardian, Photon Cannon, Sonic Emitter and Buzzer hive don’t have very special ways to be position however there is still one trick you can pull off. Instead of placing them before the enemy army shows up, place while they're preoccupied. A Sonic Emitter behind the enemy army can cause serious havoc and practically obliterate anything close to it. Always wait until the enemy is inside your build radius before placing it and make sure you have enough power to keep it going.