My one beef about shooters

I have mentioned before that I love first person shooters on my XBox 360. I guess it is the rush you get from the (mock) kill or be killed situations. I am not great at these games, but I can hold my own. Lately I have been playing Call of Duty 4 alot over Halo 3. My Halo 3 disk got scratched, or I probably would have never tried COD 4. Anyway, I am better at H3 in that I win more games. I win a few COD 4 games, but not as much. ANYWAY, the main point to this post is that there is a HUGE difference in the two games. Yes, they are both shooters. the big difference is the controls. The right trigger is shoot for bother games and A is jump, but beyone that, there are HUGE differences. You may think that it wouldn't make much of a difference, but it does. I got a new H3 game this week, tried to play it, and got SMOKED. The biggest difference is that the melee button is different for each game. It is a big deal when you try to hit someone in H3, but kneel instead. Or vice-versa. I guess I am going to have to go one month playing COD4 and then another month playing H3 so that I can keep the controls straight in my head. I wish that each game would use the same basic controls for each action. Maybe I can change them in my options menu.....