Aimbot, Wallhack
Boosting his friends with some obvious cheat, uploading in hopes of a overwatch/vac ban.
His profile: http://steamcommunity.com/id/joljoljol/
entire match: steam://rungame/730/76561202255233023/+csgo_download_match%20CSGO-959YK-dmkTE-ovo4R-5NW4m-Eis8O