Gugg_Unit1: https://www.moddb.com/games/quake-2/addons/gugg-unit1
The Strogg Skycraper: https://www.moddb.com/games/quake-2/add ... -skycraper
The Strogg Outpost: https://www.moddb.com/games/quake-2/add ... gg-outpost
Montain King: https://www.moddb.com/games/quake-2/addons/montain-king