HOW TO GET THE SNIPER RIFLE AMR DEATHWIND
The AMR Deathwind was the best Sniper Rifle in the game before the release of the DLCs, to be able to drop it you have to be in Extreme Mode and that means that you have to play in a New Game + run.
We need to go to Remnant Wasteland, Sea Watchtower to the South-West of the map, we're going to fight a level 145 Concealed Gembu so if you're low level just be sure to bring a couple healers with you.
The fight it's pretty easy to be honest.
If you need a video walkthrough check the link below: