Check out 3:36 and see the dude blow his teammate up with a Rocket.
I’m mixed on this. On the one hand, it means more blind rushing and grenade throwing, since you won’t be penalized for your teammate’s actions. But on the other hand, there’s always that one guy you want off your team so badly.
Note: It seems as though 343 have allowed us to stay scoped even when getting shot at, so griefing will be minimal?