Frankly, I don't really care so long as the target is dead. That means said target is back at the respawn screen, not shooting at me or my team. That's one less rifle, one less grenade, one less potential super that is on the front for me and my friends to deal with at that time. Now, I wouldn't mind the amount of points you get for assists being based off the total damage you did to the target. You did 50% of the damage? You get 50pts, you did 99% of their health, you get 99pts. I think this would be a more fair system, if score is really what gets your jollies off.