ik it might seem convincing the way this guy presented it but i just watched the video again and theres a plausible explanation for everything he talked about
bullets on the wall: tarrant aimed near the corner and continued precisely on the bodies (near floor)+ u can see live blood splatter with every shot+ blood on the prayer mats from lots of the guys
mag wasnt there waiting, thats just a fabrication. item doesnt resemble a mag and tarrant drops his own later.
supposedly barefoot guy is a whole other person, if u watch it back guy beside him is wearing blue shoes with white soles, quick camera frame made it look like blue socks.
bullet casings is simple camera glitches with lower quality streams
this guy is a larper whos manipulating his content for a hopeless conspiracy theory, i can give u the link and u can check for urselves if ud like.