This is going to be a brief tutorial on how to be able to go underneath various maps on MW3 with an Assault Drone. You can do this to impress a couple of friends or you can do it in online multiplayer to annoy random gamers as well, however this may seem quite a challenge to pull off.

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A class that you will need is as follows:

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To do this glitch you have to have a friend with you that has a tactical insertion. Get your friend to plant his tactical insertion next to an open wall/fence and call in your Assault Drone. Once in your Assault Drone, kill him and move over to your friend's tactical insertion and wait for him to spawn. When he spawns, he should be in a Jesus like stance and you will be free to roam outside the map. You can pop in and out of the map as you please and you can pick off unsuspecting enemies along the way.

This works on all maps with any open walls/fences.

I did not find this glitch, however I wanted to make a tutorial on it as I haven't seen one around.