The process by which one team member of any given game either on accident, or on purpose, makes a move or uses a projectile to harm another team member/members removing anywhere from 1% to 99% of health or armor.
*player 1: (pulls out grenade; holds down trigger; slips off trigger) grenade thrown to team to commit team damage. (-6 points)
*player 2: (don't hurt your teammates!) 64% health
*player 3: (Cease fire!) 2% health
*player 4: (check your fire!) 45% health