Found this player just now on my team (blue) doing a really good score (better than 3:1), and I checked their xlrstats, and it was their first time on the server. The demo is kinda big, I apologize, but the first five minutes or so should prove a definite WH. Aim was too bad for there to be AB, but obvious pre-aims and shooting down into water at invisible (to the normal player) targets are pretty obvious, to me.

Red at 4076, Blue at 4377.
Red at 4087, Blue at 4391.
Red at 4087, Blue at 4393.

These are a few timestamps that display the WH.

Also, there is a kill at the very end of the demo that shows WH as well. It was impossible for the player to know that the other player was there without WH.

Demoes below. I was alt-tabbing through discord and urt so it may seem odd but definitely caught the wallhack (i think aimbot too )on video. Idk the timestamps but they are short demoes but all I needed to ban
Userid = 98162

Thanks, asian.