Dragon agrees with what Lunar has thus said so far. But dragon will also add some inputs on the clips. Clips are better if its a somewhat lengthy recording (~2mins) with /record and /stoprecord on console (pressing "~") would be easier to see the flow of the game and guess what his thought process is in the event he isn;t hacking. Generally we have a three strike rule that displays that they have some kind of hack doing on, unless it is blatantly obvious. That being said, dragon will give some opinions on the four clips after almost contracting seizures:
1. First snap does look bit unnatural, but the second shot is fine, probably just checking corners or has uav which alerted him. Is pretty standard for experienced players. That alone isn't enough though.
2. Seems like a regular shot. Like Lunar has said, person could have killed him before as a camping spot and since we don't have the entire demo, it cannot be confirmed. the way he switches the gun and shoots usually indicates a player who's played for a long time. Being flashy and all.
3. Player is checking the office choke point then enemy appears in the downstairs bathroom, then snaps to him and shoots. Pretty standard stuff as well.
4. Again, another shot thats not too hard to perform with or without UAV. He checks left first then to target when he identifies it.
All in all, gameplay is fine. .w.