Suspected map hacks (76561198303626934)

I guess you refer to the grenade at 12:55. Difficult, I see no reaason why he moves forward with a single Panzergrenadier squad and he is also moving right towards the howitzer at the right time. However, I made many tactical pauses when watching the replay, only in the last second he decided to throw that grenade, before he is just moving around. There is a chance that this was pure luck.

I'd say 60% sure he has a maphack. Mainly because he is moving with a single squad there very offensive which makes no sense at all if you look how defensive he played all the game before.