Hah, I didn't mean for it to sound so rude, you could easily have made it up, it just is the exact same concept as Grifball :)
I was thinking more of uplink off of advanced warfare :p
~ @SX1
Hmm, well Grifball is a lot older, as well as Uplink not being with explosions; with Grifball, more often than not, the person who scores gets killed.