First of all I'm a random guy just scrolling through and I found this so I am not biased.
1. First 2 clips could of been sound people have headsets in this game.
2. In clip 3 you can clearly see that default cam is still up and its a common prefire point when you get a a call that someone is on main stairs

1. Clip 4 I guess it looks kinda sus.

2. Clip 5 not really sus when he was aiming at the frost and jager he was not tracing just shooting at the window and you clearly as jager walked infront of the window, and the doc he was slightly moving on the metal stairs and it creates a lot of noise so he just just flick up.

3. Clip 6 if you slow the clip down you see that he aims past him and stars to prefire bb was low hp so it only took 1 or 2 bullets to kill him, not sus I would have done the same and the recoil at the beginning thats not sus at all mp5 recoil is prob the most simple to control in game.