Glitch in Crack Down (advanced)

First of all you must have fraps for this. You may download it in this website http://www.fraps.com/download.php
Second, on your fraps, if you do not noe ask other people(or maybe I will post it later).
Third, enter a search and destroy match named crack down.
Forth, if u are a red team member, go straight and u will find many box.
Fifth, find the one which have 3 box and 1 is stacked onto the other.
Sixth, on fraps to jump to the 1 which is stacked, than, u continue to on fraps and squat down and then jump(continuse pressing the squat butoon).

If u do it correctly, u should be able to jump into the box. People cannot see u, u can see them, people cannot kill u , u can kill them. HAHA!!
Hope u like it!