Just tried the update a bit quick, and I think that the MP5 has quite the firepower. A dude started shooting me from faaaar away with it, and while I got to cover, I had already lost around 75% of my health in only a few seconds.
Well, as I said, I just pasted it from a 1680x1050 canvas, to a 1440x900 screenshot. It'll look smaller in-game, cause it'll adapt to the screen setting for the player. Also edited my post so you guys get it how the HUD'll work