It was impressive to see if a little tight on the space, but the idea for the game arena is to practice team drills not necessarily to play full games.
I know everyone was just getting used to the "feel" of reball last night and how it hurts if you get shot
put it this way, if you play a 5 or 7 man game with reballs, you are shooting rubber bullets at one another at 220fps. At close quarters, this HURTS far more than paintballs do.
In fact, once you've played with reballs, you don't feel the pain of getting mugged by paintballs anymore.
The game arena is for running drills, not really for proper games. A few people found out the hard way last night when they got their arse mugged (oo err)