We know Rance's party in X can hold themselves against JSDF special force with sub machine guns, assault rifles, miniguns and light armored vehicles (although I think Orion has M134 mounted on LAVs instead of M2). But they still hit hard as shit and Rance's party was on the defensive the whole time, they weren't charging through firing line and mowing down soldiers. Even Miracle freaked out when a single attack helicopter showed up.