Roaming hordes/packs for D3

Idea: Implement roaming hordes of horror for D3 empty and haunted hallways.

Execution: a pack of “X” amount of wild domp, zerked and other ToH2 like mobs which spawn in random locations throughout the map of D3.

Time period could be like once every 2 hours and 4 packs maximum at once on the map.

Each pack are spawned on the map for the time limit of 15 minutes or until they are hunted down and killed.