Funny this comes up, I just picked up a copy of "Killing Glare"
"2 Balls, 2 Goals, 3000 Rounds of armor piercing ammunition" IIRC for the tagline.
Cross Paintball with Football in a 2 block by 3 block section of Urban Blight. Two teams trying to move a ball from their goal section to the opposing goal section without getting blasted out of existance by the opposing team in the process.
I'll look up the full rules in Shadowbeat tonight if someone doesn't beat me to it.