MW3 Hacks.Modern warfare

First off, Requirements :
A Brain
Cheat Engine 6.1 (32/64 bit)
Modern Warfare 3 - On AlterMW3

Asuming that you have taken the steps nessasary to install Cheat Engine and AlterMW3 files, We'll jump straight in.

Open up Cheat Engine, click the little computer icon in the top left

Select iw5mp.exe


Now resume Modern warfare 3 and Head on over to your barracks

Find your experience (Located on the right hand side)


Go back to cheat engine and type in the amount you have
For example, I have 1746200 experience at level 80, Don't worry, I'll just revert this to 200


Type the amount of experience you have into Cheat engine, like so.


You'll probably get some stupid amount like 200,000...


Enter a game and kill someone, usually getting 100 xp a kill without headshots and balony...
Just check how much you have in the barracks afterwards.
Leave the game after acquiring one kill.
Go back into your barracks, I should have 300 xp.
but I have double xp on and I got one kill and an assist, I gained another 240 xp, I have 440.

So I type 440 into Cheat Engine and press "Next Scan", like so.

You will get a set of addresses, Select them all and press the red arrow to move them all down in to the box along the bottom of Cheat Engine,
once there, shift click them all and double click in the value column.

A new box should appear, replace the value in there with any number above 1746200 and hit ok, Go back into game, You will be Level 80 with everything unlocked (Class wise), You can press Prestiege mode and hit more info and then enter prestiege, after that, Hit Alt or your windows key. Select all the addresses again and change the value again to something more than 1746200 and repeat 10 times for 10th Prestiege.