Hey! To do this glitch you need a sentry gun and assault drone. Place your sentry gun. Pull out your assault drone, and right when it is about to come out, pick up your sentry gun. If you do this part correctly, it should look kinda like some type of mech type thing. You want to find a spot where you can place the assault drone,but where it wont let you place the sentry gun. Once you get correct positioning open up your assault drone. You will see in somewhat of a 3rd person view (I couldnt show it on the video because if you watch it in spectator it does not show it the same, so I just showed it from 3rd person in the video) You will be able to see your assault drone, and you will see that it has no top part of it. Unfortunately, other people cannot see it unless they spectate your 3rd person view. This is a useless glitch, but it is pretty funny. Have fun with this one guys!