Resurgence is an upcoming Skaarj campaign/mod for Unreal v227. It includes new maps, weapons, enemies, and features.
These raptors are native to some of the high-elevation regions of Na Pali. Many have been domesticated; when they aren't hoarding items in their nests, they can be found in mines and outposts as sentries. Due to their Tarydium-weakened digestive systems, it is not uncommon to see a small group of them passing around flesh from a recent kill to ease the process.