This mod has a couple good modifications for it. The settings you need to use are as follows.
Map to apply sppf to: Coagulation
Weapons on map and spawn weapon: Brute Shot
Gametype to play on: Slayer
///////MODIFICATIONS///////
8 Banshees on each side of Coagulation (16 banshees total on map)
Brute shot shoots visible plasma grenades
All spawns are fixed: You spawn on one side or another from the sky.
NOTES:
I tried cloning chunks but it only let me get around 7 banshees before it would blue screen people on xbc. The only way to get this to actually load in a good amount of time and successfully was to use the meta data from netgame equipment into banshees.
Download Here - Apply To Coagulation
http://www.megaupload.com/?d=KKL068ZB