I realize that Reach is awful, and I'm thankful for it.
Now, as it has always been with the Halo games, it doesn't make sense. I know it sounds whiney to say "unfair", but there really is no other way to describe it. It doesnt make sense why vehicles kill sometimes. It doesn't make sense why I die when I get hit by one revenant bomb, but it takes me three hits to kill someone. It doesn't make sense why my hog flips constantly by bullets, while it takes me 2 rockets to kill it. It doesn't make sense why I shoot a gauss twice with my gauss and they keep driving straight and they hit me once and I flip and flip.
I used to think that Bungie somehow made a system where higher ranks get screwed like that to make the bad kids better. If that's not the case, there is no other explanation. One time, I shot an empty hog with a revenant. It took me 8 hits dead on to make it explode. I don't see how that makes sense.
If this game made sense and had something of a constant, we would still be playing it. We would all not be waking up hoping it's Nov so we can play Halo 4.