File:Q4.png Bison Squad was one of the squads present at the Invasion of Stroggos. Bison is a mechanized squad consisting of both hover-tanks and walkers that the player hears frequently over the radio and encounters assisting Raven Squad in the Air Defense Trenches. They're also found at the Aqueducts Annex, where two hover-tanks are ambushed and destroyed by a Strogg Harvester, which Kane subsequently destroys.