M9 (it looks coolest with the rag skin), 2 or 3 clips, 3 M67 Nades and:
CQB -
Depending on ping and whether I want to spray people at medium range or down them first at close range P90 or MP5 (the MP5's rounds do more damage, but you need to be a bit more precise. OTOH, the screwy balistic modelling means you can snipe with P90) with 3 clips.
CQB night -
Either of the above with supressor and aimpoint (I really do find them handy for aiming out of dark spots) with 2 or 3 clips.
CQB assault rifle -
Sig or FAMAS w/ 3 clips
Assault rifle -
FAMAS or M16A2 w/ 3 clips
(occasionally a 203, in which case no hand grenades)
I don't do - scopes, multiple primaries, shotguns (not till they fix the model and give us a decent sighting device) or Desert Eagles (taking up space that could be occupied by a CZ-100).
I gotta say, my configs are pretty much the defaults with the pistols and nades fixed.