As noted the crosshair drift is a slight problem. My biggest issue is the Field of View, I feel its far too tight and when being shot just before death uumm ouch. reminded me of another game that did this, KIllzone, I will not complain at 90 degrees, but for a widescreen, 75 is too little, this was fine a 4:3 screen as I played threw Doom 1 and 2 on the X360 and it was a 4:3 resloution to start with and unchanged.
The last thing and this is a pet peeve for me, WHITE Crosshair, can we get coloured options please! I prefer to play with a green crosshair, as it becomes more visable, and I am very aware that if you choose a green crosshair, you may not know the difference between a neutral or friendly AI, if your 1 hour into the game and can't tell the difference between friend n foe, dunno what to tell you.