so there is a rock wall on the board anyways. Putting tokens on the board confuses me. It means that if there is no token on there then there is no boulder/rocks, so no breaking los etc. Same goes for the walls around the camp. In the first scenario do they break los? do they stop movement? I ask because in a later scenario on the same map you put tokens down on them that say they break los and movement. Seems the terrain is really left open to house rules.