i disagree, i think the FAL is quicker, i actually dig that gun a lot. bap, bap, dead. FAL silenced with holographic is a killer for sure.
as far as sub machine, i really only use the UMP now that i think about it, the uzi can be cool, and the mp5 i used for a long time but havent to much lately. UMP silenced in MW2, to me, is like how everyone used MP5 silenced in cod4, i feel like its the most well rounded sub machine.