This is a tutorial on how to fly an invisible banshee on Composer in the Halo 4 Campaign.
To do this trick, play through Composer until you reach the middle, battleground area (the open location with many Mantises) for the second time (this is after the covenant arrive).
When you enter this area from the hallway/room, you should see a group of covenant in the middle area near a mantis, and across this area, a ramp/platform with a Banshee sitting on it.
You may see an Elite run toward the Banshee. If so, you will need to kill him before he reaches it. (Sometimes the Elite will remain stationary, and you will be able to take the Banshee without any interruption).
Once you have the Banshee, fight through all of the waves of covenant. When youve finished the final wave, a Waypoint will appear at one of the doors. Fly your banshee toward the door, and as you near it, you should hit a Loadzone, and another one immediately after. This will remove the elastic barriers from the edges of the map.
Take your Banshee, and fly toward the open section of the level (where the phantoms entered the area originally). Line up in the middle, and begin moving your reticle up/down until it appears red. When your reticle is red, you are looking at one of the Invisible Banshees.
From here, the options split depending on how many players are in your game.
--Solo: Fly toward the invisible Banshee. Once you are near it, line up directly above it. You should then hit a wall. From here, look up, turn slightly, and exit the vehicle. You are aiming to land on top of the Invisible Banshee. This may take a few attempts.
--Co-op (Easiest): Have another player stand on top of your Banshee before flying toward the invisible banshee. Once you target it, line up above it (and just to the side). When you hit the wall, have the player riding on top drop down onto the Invisible Banshee.
Once someone is near or on the Invisible Banshee, board the vehicle. You will then gain control of the Banshee, and it will remain invisible.