I am looking for cheats for Ulimited health, ammo, special weapons and..

To enter the cheats, press start during gameplay and enter the following:

Scott Mitchell Invincible=Hold LT+RT+back then press Y,Y,X,RB,X,LB
Team Invincible=Hold LT+RT+back then press X,X,Y,RB,Y,LB
Unlimited Ammo=Hold LT+RT+back then press RB,RB,LB,X,LB,Y
Put your life at 100%=Hold LT+RT+back then press LB,LB,RB,X,RB,Y

Note:for the unlock all levels cheat you need to do it at the screen were you select the missions.And for all the cheats you have to hold both triggers and the back button.Also you have to enter the cheats at the same rate.
The other cheats you have to pause the game.

Unlock all levels:Y,RB,Y,RB,X
Full life: LB,LB,RB,X,RB,Y
scott invincible: Y,Y,X,RB,X,LB
team invincible: X,X,Y,RB,Y,LB
unlimited ammo: RB,RB,LB,X,LB,Y

HOPED I HELPED!