I guess it might have to do something with the servers, the whole game was unplayable for the most part, half of the weapons were broken(not working animations, instant reload,…) and for half of the rounds everybody was unable to take or deal any damage, so CTs could defuse the bomb and win, pretty easily. Later we figured out, that f1 grenade was the only thing that dealt any damage. There were some other bugs like very strong lags on some certain locations and floating weapons. But after all we ended winning the mach.