We are sneaking around the building while Liu is at the front scouting for the monsters, we are following him from behind and waiting for his signal to move or to stay. He's at the corner and takes a peek, we are waiting for his hand signal and as soon as he waves his hand, we are all running quietly to the other building in front of us. The clanking sound of the armor of these people is really a problem, so they remove their armor for this one then we continue sneaking around the building to reach the open area that's still quite far away from us.