In light of reusing older assets I've come to refactoring the roles of certain units to fill in the gap in the Tech Tree... firstly is that the Old Rhino Tank has been renamed into the Hippo Tank as it is now amphibious. The Double Barreled Tank reminiscent of the Soviet Tank of Red Alert 1 is still retaining its name as the Rhino Tank: http://media.moddb.com/images/mods/1/21/20827/htnk2_preview.png Which you get from the Rhino Drop Support Power for the Red Guard once you build their Tech Center (War Palace) The Rhino Tank itself has more Hitpoints and as mentioned is armed with double barrels.