First thing that you need to know, is that Battlefield 1 is an internal cheat.
This means that you can inject this cheat, using the LOAD CHEAT button.
To successfully use this cheat, there will be some actions you need to do:
Firstly, open your Battlefield 1 game and follow these steps:
(1). Go to Settings > Graphics > Advanced
(2). Go to Settings > Controls
(3). Go to Settings > Graphics
(4). NOW LOAD THE CHEAT
This just needs to be done once, if it is the first time you’re using the mods.