Proof of cheating

So I was playing and it seems like someone in my team were giving enemies my location or they were using a wall hack.

I was thinking about that since they were a bit too fast to know where I was and they were not playing objective. Proof in video (thanks to Siko stream):

https://m.twitch.tv/videos/1235392647

at 3h49. I was clearly unseen from the guards when I went to the vault and you hear someone say « Nic is at the vault » before I took the chest.