Step 1- Go to Cod4 Splitscreen kill yourself
Step 2- Unplug your usb put it into your pc
Step 3- Open up Usb Xplorer and Extract your Profile to Desktop
Step 4- Open up HxD then open your Profile thend Search for Motd
Step 5- Look for .set Custom class 1 the n put your cursor between the . and the sut then Paste Write this Code
bind BUTTON_BACK "perk_weapRatemultiplier 0.01;noclip;give all;cg_laserForceOn;player_sustainammo 1;god"
Step 6- Save then open up your Profile in Hash Block Calculator
Step 7- Put your profile back on your usb

U must Clear System Cache befor doing anything