SIG SG-552 Commando -- $3500

The Commando is my personal favorite for a couple of reasons. First, it's 5.56mm ammo does almost as much damage as the AK, but unlike the AK, this gun has a scope. This scope is not as powerful as the ones on the sniper rifles, but it does help with long ranged combat. When zoomed in, the gun fires slower, and you can get about 5 shots in the crosshairs before it starts getting inaccurate. Like the other assault rifles, it has a 30-round clip, with 90 rounds in reserve. Unfortunately, this gun is terrorist-only, and it cannot be used on assassination maps.