Call Of Duty : Modern Warfare 2
The Thermal Scope is a usable weapon attachment in Call of Duty: Modern Warfare 2.
When aiming down the sight enemy soldiers show up in solid white and everything else in a gray scale. Because it sees body temperature the player using it can see enemy soldiers through smoke. The Thermal Scope can be used on Assault Rifles, Sniper Rifles, SMGs and LMGs. The overall view through the sight is smaller than looking down a sniper scope or ACOG sight, but you can hold your breath like the sniper scope. This attachment doesn't work well on snowy maps as the snow will also show up white. Best used if you fire your weapon in bursts while aiming down the sight, since muzzle flash also appears white.
The Thermal Scope can be countered by the Cold-Blooded perk, but your player will still show, albeit not glowing white hot.
The Thermal Scope can be unlocked for all Assault Rifles, Sniper Rifles, LMGs and SMGs in multiplayer. It is unlocked when you get 20 kills while looking down an ACOG sight.