Or the way soldiers immediatly stop coming once you hit a certain checkpoint area? You can literaly just run through some areas till you hit a check point and skip 15 minutes of the game at a time.
Thats called a trigger volume
And as far as online and ranking, i think its better the way it is. If it took only skill to level up and get the new weapons, then people 40+ would rape THE SHIT out of everyone. I mean, i get put in matches with >10s still and although i do still rape the shit out of them, not all 40+s do. Plus its nice to know that since i raped the other team, that even though i lost ill still get points. It always pisses me off in halo when i go 20-5 and the rest of my shitty matched team goes 1-15 so i lose rank. Oh well thats just me.
As far as being to easy, i think were just to good
On a side note, before i went to work today, i was in the top 1000 for kills on xbox. 732 or something like that, pretty spiffy.