In this tutorial, we learn how to Phantom flip in Halo 3. First you will start up Sierra 117 with two people. Once you reach the point where you are in a tunnel, go through until you go past the fifth row and start to shoot what you see. Now, have someone jump in the phantom while the other grabs the turret. After you do this, you will grab the phantom and be launched into the air. When you do this, you will be able to do a phantom flip and reach new heights! This is easy to do and can take a few shots, but manageable!