@Pristine20
I think I agree with you in saying that competitive aspect of halo is not really as good as COD (and I assume KZ2)...like I really dont care what my rank is or if I gain much XP. Its more about..."will I team kill this match...will I teabag enough...will I get an overkill (4 kills in 4 seconds)...will I trash talk after the match if we win...will I nail that sticky or jump with the Warthog jeep "...etc.
So if you are in to competitive gamplay and care about ranking up...Halo 3 may not be as good as COD4(or KZ2).