In the underground map, if a heartbeat sensor is deployed in the water area around the last objective, it can’t be shot. It had to be destroyed with explosives (martyrdom worked in that instance). Apparently bullets don’t go through water.
In the underground map, if a heartbeat sensor is deployed in the water area around the last objective, it can’t be shot. It had to be destroyed with explosives (martyrdom worked in that instance). Apparently bullets don’t go through water.