r2r_menus released a mod menu source he made about a hour ago.
("I thought seeing as many mod menus as mw2 might be fun lets see what happens your job is to make the game fun i have provided you with a working all client source that i updated from a mw3 mod menu source i found i did not work on this long but it works and you should be able to do the rest on your on if you made a mw2 mod menu than you will understand how this works instantly this is in a dash launch plugin form i will release .dll tonight or tomorrow on this thread all i ask is that you keep the credits page in the code at the top. If you remove my name that is fine but the people i have listed deserve most of the credit don't be that way here is credit to the people who helped me")
Menu Download
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Source
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credits*
TeamGeckos KYZA
imGol2den
SC58
nicholasbroo
xI cHOcOLaTe