I had a problem with the progress in the campaign during against all odds level. After regaining the sieve in the launch pod, I encounter through the hole in the wall. I see Orcs running over me along a road on foot. As I move into the open room, which seems the perfect place for a fight, nothing happens. No Orcs, no struggle. I can shoot through a barrier of stone, but when I try to move forward, there seems to be ground and nothing but the background.
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