Counter-UAV

 is a multiplayer killstreak reward in Call of Duty: Modern Warfare 2. After achieving a killstreak of 4, the player can call in a Counter-UAV, which will turn all hostile minimaps to static, much like the Scrambler perk but with a more immediate effect. The Counter-UAV is an aircraft, and can thus be destroyed. Once activated any UAV'S summoned after will not show on screen untill the Counter-UAV killstreak is over. Calling in 50 Counter-UAVs will reward you with a rotating Counter-UAV emblem. This killstreak reward is very useful if you are surrounded by enemy players or playing intense games as they cannot see you on their minimaps but you can see them and have a great advantage. The killstreak is less useful in Hardcore game modes where players rely less on UAV radars which are only available if the team has an active UAV. Thus the killstreak will only have any effect in those cases, rather than at any time in regular game modes.

Trivia

 * The Counter-UAV plane has the exact same appearance as the normal UAV plane, except the Counter UAV plane has a different number on the side (can be seen with a Sniper Scope) and flies in the opposite direction.
 * Sometimes a Stinger missile won't destroy a Counter-UAV plane, but instead after being hit it will fly away. This doesn't count towards the Cold-Blooded Pro challenges.
 * Destroying a Counter-UAV plane will show the message on all players screens "Restored UAV".