The RX-25 was the most heavily produced member of the RX Variable Chassis. The Twilight Trooper Corps' Main Battle Tank. Its heavy Ablative Durasteel-Titanium-A Armor was able to withstand heavy punishment. For armament, the tanks primary weapon was a 120mm cannon that fired a APHE slugs at hypersonic velocities to pierce armor and detonate inside a target for heavy damage.