yeah acogs on snipers in cod4 was fricking amazing. dragunov acog with bandolier uav jammer and steady aim was one of my favorite setups. for some reason i found it alot easier to get headshots with acogs than i did with the normal sniper scope, but only with the m21 and dragunov. the bolt action rifles are a little harder to use imo.

my favorite map with that setup is bloc. nobody ever knows where you are due to UAV jammer, so you can look across the map and take people out of windows then move to a new location before people realize where you are. so much fun.