Modern Warfare 2
In Modern Warfare 2, it is an 11 kill streak. The chopper has a thermal imaging camera which is used to find the enemies. Cold Blooded hides players from view; although they remain faintly visible, they no longer have red boxes around them. The Chopper fires explosive rounds. The fire rate is quite slow but much faster than the two largest guns on the other 11 kill streak, the AC130. The Chopper Gunner is usually regarded as the better of the two, although this depends on the map. It is much easier to shoot down than the AC130 because it has less flares and it is closer and so a bigger target.
 Black Ops
In Black Ops, the Chopper Gunner is a nine kill streak, and it no longer has thermal imaging. Instead, the player looks out of the open door and uses a minigun. The gun also uses explosive rounds but they are not as explosive individually as the rounds from the gun of the Modern Warfare 2 Chopper Gunner. However, the rate of fire is much faster. Again, the enemies who do not have Ghost Pro are highlighted with red boxes. However, it is now much easier to see hidden enemies due to the lack of thermal imaging.
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