User blog comment:Darkman 4/CoD7 multiplayer chat/@comment-1079585-20100426040840

In German, machine pistol = SMG.

A machine pistol is a very small SMG that can be used in the same situation as a pistol. Obviously the UMP is far too big to fit into that category, although the MP5k does blur the line a bit.

But yeah, there is just too much stuff in MW2's MP.