Facebook: http://facebook.com/AhoyYT Twitter: http://twitter.com/xboxahoy The AT4 is a Swedish weapon, produced by Saab Bofors Dynamics. It first entered trials with the Swedish army in 1981, and the US adopted it as their primary anti-tank weapon a few years later, replacing the older M72 LAW. The AT4 is designed for use primarily against vehicles - tanks, hence the 'AT' or 'anti-tank' designation. As there are no such vehicles in modern warfare 2 multiplayer, there have been some liberties taken with the weapon. The real AT4 is unguided; There is no 'HS' or 'heat seeking' variant. Presumably in Modern Warfare 2 this capability was added to make it more effective against air support, which is rather difficult to hit with an unguided missile. The AT4 fires projectiles 84mm in calibre, usually a h-e-a-t or 'HEAT' warhead (high explosive, anti tank). In game, the projectile is more likely to be a HEDP or, 'high explosive dual purpose' warhead, effective against both vehicles and unarmoured targets such as personnel, thanks to a fragmentation casing. The iron sights are obtrusive but it's accurate and easy enough to place your shot, so loss of peripheral vision is seldom an issue. Compared to the rest of the launchers in Modern Warfare 2, the AT4 is the most versatile, featuring two fire modes. The first is a lock-on mode, suitable for use against enemy air support. Aim, lock, fire. The lock and fire time is faster than both the stinger and the javelin, making it more likely you can fire this weapon before being killed. However, the AT4 is less powerful than the other two guided launchers, and will not destroy harriers, or the helicopters with one hit. This is definitely a disadvantage as the AT4 is a one-shot only weapon. Only the UAV and counter UAV can be destroyed with the single rocket. Regardless, the AT4 will cause enemy air support to expend flares, making it much easier for those with Stinger missiles to shoot down suppo