Dealing damage which helped your teammate get a kill
Rating given back to you when your death helped a teammate get a kill
Opponents that died while blind to your flashbangs
Rating gained or lost as a T after the bomb was planted
Credit for winning the round when opponents were still alive (adjusted down by the value of the equipment they saved)
Fights occurring after the opening duel but before the bomb plant
Winning rounds as the last player alive on your team
Getting the first kill or being the first death in the round