Port run isn't all too difficult, and hard mode is just regular mode but the zombies are tankier (not including the exploders), but yeah I watch a lot of mturbogamer. Try those YT''s out
If you want to learn the best way to play the game starsnipe is probably one of the worst to watch. He might be entertaining at times but it’s really unrealistic to watch someone that only wears swat gear and only uses guns, if you want to get ahead you can’t actually play that way.