To install the mod Extract Every model from the Brotherhood of steel Armor Folder into 
\x64c.rpf\levels\gta5\props\lev_des\v_minigame.rpf\

Install the Script into your scripts Folder in the Root of Grand Theft Auto V directory 
N:\Steam\steamapps\common\Grand Theft Auto V\scripts

To Activate the mod IN GAME press NUMBER PAD 7
 if your screen gets stuck while changing in/out of the armor, press y


REMEMBER FIRST PERSON MODE DOES NOT WORK IT YOU ENTER FIRST PERSON MOD YOU WILL CRASH!