So to explain the thing straight forward, in the second round I did notice that there is someting wrong with a team mate and after 4th round I was sure that there was a cheater in our team and told the whole team that he's cheating. Expect a guy in our team named krusty refused to kick him so we had to get creative.
match id: steam://rungame/730/76561202255233023/+csgo_download_match%20CSGO-LPvpX-wNA2F-9yYQh-amGYt-EhMMB
cheaters account: https://steamcommunity.com/profiles/76561199091169173
here is a hilarious clip from the match: https://youtu.be/mj1IAkJIS34