whats the ground like?? figure out which of your shoes are the quietest on the surface, rubber soled shoes can be almost silent on some surfaces, very helpful if your the sneak and peak kind of guy. munch on a lot of carrots, they help with night vision, and even if they dont help, you will think they help, so you have that extra confidence edge.

i think the shorter the barrel, the easier it might be to use, however the longer the barrel the quieter it will be if its ported? a bit of extra noise might help confuse the other players, but maybe not as much as one of their buddys getting hit and they arent sure which of the cubicles/barriers the shot came from.

what about carrying around some pebbles in a pocket, use them as a noise distraction, throw them into dark areas and listen for any reactions to them ect. how experienced is the other team? that sounds like it will be an epic game