That’s all well and good. I actually didn’t know that, however my post is still valid on the fact that long before heavies came around, I’d get more or less in the carnage report than what I got in the actual game.
The score board when you press the back button in Reach is NOT just kills in Slayer game modes, it is purely point based, in normal game modes, you get ONE point for ONE kill.
However, in Heavies, you get bonuses for getting vehicle kills, blowing up vehicles, sticky kills, assassinations, a lot.
This is why you are getting 40 points but 28 kills.