youtube has every glitch possible on it
although id advise not using elevator tutorials as they usually confuse you more than they help

PhillyCheese34 wrote does anyone know any good glitches? if yes, please explain on how to do them?
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p.s. to people who leave any retarded comments, this is for you:

well do you know how to super jump and then i can tell you some glitches i know

Some good glitches are elevators, taking you to the top of map, then you can usually go out the map. There are different ways of doing these, so look for elevator glitches on youtube, or this forum, and attempt them. They may seem hard at first, but once you've got them mastered, they're easy..

I hope you find this useful!

Lolz just look in cod mw2 glichs section

I saw some people talking on elevators, I suggest not trying these if your new to glitching, these can take hours your first time, and can be really frustrating!