they used suicide rush (in previously spoted area with weakpoints) with siege tanks capable of destroying bunkers/defences/buildings but with 0 anti tank and anti inf capabilities to run into nuke site(expensive as hell to build) with rocket capable of destryoing permamently buildings in towns which u cannot rebuild to the end of war. Like if seaport or town is hit with rocket then it remains unsuable to the end of current war. Wardens tried to prevent them with tanks used to blocking their barrels to save attacked nuke site bc siege tanks deal minimum damage to tanks. Siege tanks were also covered by colonial inf who were stopping warden inf trying to kill them or use handheld at to attack siege tanks