The MP40 Rocks. Who cares who uses it. Its in the game and anyone can use it so quit whining when someone does. Every COD game has a best gun and someone whines about it when people use it. If your good with it use it. I am good with it and many other guns and I use them all depending on the type of game I am playing, IE. Headquarters, Search, Sabotage, Deathmatch etc. Different guns for different types of games. Thats how I play. Everyone has favorites. The STG is also a great gun and I believe is probably the second most popular gun used in the game. I like it for slower paced games like deathmatch and search, I use it for Hardcore games as well with the suppressor or hider whatever it is. People get pissed when I own with the STG too. WHO CARES WHAT OTHERS THINK? Use what you like and what your good with.