Anyone have any luck on the final boss? I'm at my wit's end. I have 2 major problems. The first being the black shit on the ground. They put it in such a massive area, that by the time I can get my team out of it, they're all almost dead as it is. And I cant just strafe out of it because of all the terrain and the small size of the room.

The second problem is burning down the sappers and the beasts is taking too long, and I eventually get overwhelmed by the beasts and can never get to the final part of killing Ozumat. Any ideas?