When level 14 starts, we enter the map and are required to kill all enemies and then proceed through the door at the end of the map. However once we killed all the enemies, the doors wouldn’t open. We tried dying and starting again from our checkpoint but the same thing happened again. We thought about resetting the level but we don’t know how without having to reset the whole campaign back to level 1, and we really don’t want to do ALL the levels again. Please help us!