Go to forge then choose any map wanting to do this cheat in.

First bring out a fusion coil and then go to human mode and get on top of it.

Then make sure you have a battle rifle and look down at fusion coil (make sure fusion coil is laid down, not standing up).

Then once looking down at it hit with battle rifle and from orange color it should get a pinkish color.

Right at the pink color jump up and you should fly up pretty high (if you dont get it right just keep trying over and over until done right).