Xbox one users rejoice, for I have found a new flying glitch method that's safe and easy and works potentially losslessly for late game.

Here's how it works: start with a throwing knife. Point your weapon wheel at it, then go down to rifles and switch your rifle but don't pull it out. Go back up to your throwing knife and close the wheel, then open it back up quickly go back down to the rifle and pull it back out as demonstrated in the video. This strat only requires throwing knives and fire bottles, so you can use it for the mountain climb in West Elizabeth. Might need to adjust based on how much of a dick the game decides it wants to be. E.G. starting with fire bottles instead or needing to chuck all dynamite etc. Just make sure you have throwing knives and fire bottles!