Using the Terran race in Starcraft 2 can sometimes be difficult and sometimes it can be easy. They have many useful unit combinations and strategies that you can use to defeat your enemies. One of the strategies is the use of Ghosts for covert strikes and army support. This strategy can be pretty devastating, however you need to master the Ghost Academy tactics for it to be fully effective.
Many players rarely use Ghosts in their armies. This is because they are expensive and their abilities can only be used on specific occasions. However, recently, many players are starting to turn to using this unit in their armies. This is because they have started to understand their abilities and versatile strategies that can be applied with this unit.
Moreover, ghosts can be built so long as you have a barracks with tech lab and ghost academy. Ghosts also come with a couple of abilities that do not require research and their nukes are relatively cheap and easy to obtain. Due to this, Ghosts can be used for many strategies.
This structure can arm a nuke that can be launched by a Ghost on the field. Only one nuke can be produced per ghost academy. The Personal Cloaking upgrade which allows ghosts to cloak as well as the Moebius Reactor which increases ghost's starting energy is also researched at this structure.
There are several advantages of using Ghosts. First of all you can get them relatively fast. Actually you can get them as soon as you build the ghost academy after building the barracks with tech lab. They are also impressive counters for ground and air units such as brood lords. They are also good when facing light units such as mutalisks due to their long range with high light damage. Finally, they are good against shielded units such as immortals and enemy spell casters when using their EMP ability.
This unit also has some disadvantages. First of all they are expensive. They cost 200 minerals and 100 gas which is really expensive for a biological unit. If you decide to use ghost tech early on, getting other units for support will be difficult since you may not have enough resources to build them.
They also require a lot of attention and micro management for them to be fully effective. Its abilities are very powerful but need to be used at the right time, lest they be useless.
You need good tactics when using this unit. There are several good tactics that are usually recommended. They include the ghost sniping strategy. This involves using the snipe ability of this unit. Ghosts have a snipe range of 10. This allows them to destroy biological units before they get close. This ability only costs 25 energy. This tactic requires you to be fast with your fingers. You need to press the hot key to select your ghosts and click per snipe so as to kill the enemy. This requires practice and is sometimes effective when you rush for ghosts quickly and attack the enemy early.
The other ability is called the ghost EMP Shockwave. The EMP Shockwave is one of the most powerful abilities of this unit. It is very effective against Protoss armies. When used before a battle, it weakens the opponent and gives you a very high chance of winning. Just like the snipe strategy, it also requires micro for it to be effective.