I mount my Surefire on my Cocker for night games.
I use it for two things...
A. Loner Eliminations (IE Ifthere is only 1 or 2 guys in an area I'll wait till they get in range, hit them with 65 lumens of Goodness which freezes them like deer in the head lights, take them out, and then move out myself)
B. Recon by Fire/Designated Target (its amazing how fixated people get when they see a flashlight shining at night in a night game. Its like they forget everything about other people being on the field as well as they try and shoot me out becoming easy pickings for the other guys with me)