Ok this is how to glitch the submarine in Shanghigh. Go to the middle of the sub, then look towards the warehouse, then turn right. Then go to the ladder to the right. Walk down it, then at the middle turn around and look directly down at the ladder. Then u must slowly walk down the ladder, then barely tap down till u hit the water. Then u will go through and be glitched in Shang.
Happy Glitching !!!!
Happy Glitching !!!!