The OP sounds like a paranoid and delusional individual. REQs are optional and nothing more. It does nothing to ruin the game.
Purchasing packs for warzone items isn't game breaking?
No, its not technically as the REQ energy bar keeps players from whipping them out until they have earned them, it moves slowly from team kills, but unless you contribute, your bar will take longer to get to the desired REQ level.
I am well aware of the typical excuses, thing is this will kill Halo. Personally I don't want that, do you?
first off, stop with the "you're killing Halo" manner of speaking, it does not legitimize your post. second off, this is a valid reason, unless you can buy packs, get a powerful REQ, then whip it out right when the game starts, its not game breaking, there is a clear working Leveling system that works and keeps everyone on a near leveled playing field.