Hm. I looked over BOK, and it actually might work well for pong. Just make some more forward spawns for each team, pong specific, and make it so that some brushes block off the secondary route in pong.
HINT: Use the 'gamemode' key.
Also, if more than 8 people show up, (yeah, right) I think we'll play NORMAL crimethink instead of Pong Arenaball.