First of all you are going to need a few file's:

XEX Menu:

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Mw2 Mods:
[ Register or Signin to view external links. ] -code post gfx mp
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The .iso:

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Wx360:

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Right lets start, Extract XEX Menu LIVE.rar and you will get a folder called "C0DE9999":

And place the "C0DE9999" folder on a xbox 360 HDD or MU.

HDD> Partition 3> Content> 000000000> Here

Now we have XEX Menu on the HDD stay, we know longer need a offical xbox HDD or MU.

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Then open the Mw2 .iso in Wx360 like this, File> Open>

Then highlight all the contents

Then extract the contents in to the "Mw2" folder



It will say 100% on each of the files in Wx360 once done






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Then open up the "Multi Mods" rar archive:

Extract the "default_mp.xex" and "code_post_gfx_mp.ff" from the "Multi Mods" folder,









Then when you have the files like the above.

Copy the code_post_gfx_mp.ff from the desktop to the extracted contents of the Modern Warfare 2 .iso folder named "Mw2"

And click Move and Replace like shown below.



Then do the same thing for "default_mp.xex" "Move And Replace" the file in to the "Mw2" folder.

Go on to your external HDD and create a folder named "Games".

Now place that "Mw2" folder we put the "code_post_gfx_mp.ff" and "default_mp.xex" in the folder named "Games" on the external HDD.

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Once everything is ready:

Switch on the xbox and go to XEX Menu

Then Game> Mw2

And load the default_mp.xex file

And go to multiplayer

Offline:

Play split screen

Online:

Go to Xbox Live> Sign in> Private Match>

Hit Start> Options> Set Button layout to Lefty

Turn on Mod's:

Press DPAD_UP

Select all wanted mod's:

Right Trigger = XP Mod(Level 70)
Left Trigger = Laser Sight
Right Bumper = Global Thermal Nuclear War
Left Bumper = Arena
Left Stick =Fast Run w/Unlimited Run
A = Super Jump w/No FallDamage
DPAD_LEFT = Explosive Rounds
DPAD_RIGHT = Care Package Only(AC130 & Chopper Gunner)

Activate Selected Mod's:

Press DPAD_DOWN

Then Hit Start> Options> Set Button layout to Default or Tactical

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Enjoy +REP IF HELPED