Yeah those are the DLC. If they go sale I might try 'em out. Have you played around with the map editor?
The "rare" animal skins are needed for several wallety/bag upgrades, and quite a few of the better weapons. I went back to several captured bases but didn't see any posted. I got the "warrior" suppressed AR last night and I'm packing explosive and fire arrows, my load out is looking pretty good now.
EDITED: 4 Dec 2018 10:12 by DSMITHHFX