GAT-X137 Vanguard Gundam MS mode

Model Number: GAT-X137
Code Name: Vanguard Gundam
Unit Type: prototype high performance transformable long range sniper mobile suit
Manufacturer: Atlantic Federation
Operator: Earth Alliance
First Deployment: Unknown
Accommodations: pilot only, in panoramic cockpit in torso
Dimensions: overall height 18.61 meters
Weight: 86.44 metric tons
Power Plant: ultracompact nuclear fission reactor, output unknown
Construction: unknown
Propulsion: unknown
Equipment and Design Features: sensors, range unknown; N-Jammer Canceller, negates effects of N-Jammer; signal flare launcher x 2, mounted in hands; link wire x 2, mounted in hands
Fixed Armament: M2M5 "Todesschrecken" 12.5mm automatic CIWS x 4, fire-linked, 2 mounted in head, 2 mounted in torso (operable only in quadruped mode); ES04B beam saber x 2, stored in recharge racks in hip armor, hand-carried in use; ES04QS beam saber x 2, mounted on torso (operable only in quadruped mode); Mk315 "Stiletto" rocket-propelled anti-armor penetrator x 2, stored in hip armor, hand-thrown in use; Mk68D "Schlag" 125mm high energy long range beam cannon x 2, mounted on backpack
Optional Fixed Armament: GAU-X439C "Kaefer Zwei II" 115mm dual ram cannon, mounted in shield; GDR-17/A "Panzer Eisen III" rocket anchor, mounted in shield (mounts ES04T beam saber); QX-B15A beam shield, mounted in shield
Optional Hand Armament: M9409SP beam sniper rifle, can be stored on rear skirt armor; Mk39 low-recoil cannon
Pilot: Shams Coza

Cosmic Era fanfic design. quite obviously based on a kitbashed gunpla Calamity Gundam i found on the interwebs, reworked to give the Calamity a quadruped mode. this is the mobile suit mode.