[RedDragon]

Here it is:

Metal Gear Rex [TL8+3] (GURPS 3e)
(All components are TL8 unless otherwise specified.)
[*]Description (!Spoilers!):Metal Gear REX was a Metal Gear prototype that was jointly developed by DARPA and ArmsTech for the United States Army in the early 2000s. In the early 1960s, Soviet scientist Aleksandr Leonovitch Granin created designs for a REX-like bipedal tank. However, Colonel Volgin of GRU rejected his ideas in favor of Nikolai Stepanovich Sokolov's Shagohod. Drunk and bitter, Granin sent his designs to an American colleague, revealing this to CIA operative Naked Snake during Operation Snake Eater. The development of REX itself was foreseen in a psychic premonition by Elisa and Ursula during the San Hieronymo Incident in 1970.

Some time after Solid Snake's encounters with TX-55 Metal Gear in 1995 and Metal Gear D in 1999, an attempt to carry out a Metal Gear project within the United States had been planned but was officially scrapped yet convinced the private weapons company ArmsTech that building one for the U.S. Army would be a very profitable venture. ArmsTech had been in a dire state financially, with the possibility of a hostile takeover becoming apparent after failing to obtain a contract on a new line of fighter jet for the U.S. Air Force. Likewise, the Department of Defense agreed to its development due to the defense budget being slashed by 15% and thus being forced to allow the private sector to develop their weapons for them.

In 2002, DARPA Chief Donald Anderson was heavily bribed by ArmsTech to back the Metal Gear REX project. DARPA funded REX's development covertly, using part of the United States' black budget.The nuclear weapons disposal facility on Shadow Moses Island was constructed to conceal the development of Metal Gear REX. Its rail gun was based on technology developed for the SDI, having been successfully miniaturized in a joint venture between ArmsTech and Livermore National Labs. Livermore Labs also developed a new type of nuclear weapon for REX using NOVA and NIF laser nuclear fusion testing equipment and supercomputers.

One of the main goals of developing REX was to overcome a global trend in military downsizing at the time. REX was a self-mobile launch platform capable of using its massive rail gun to launch a nuclear warhead contained projectile package with a low radar cross-section, and without the need for a rocket propulsion system, The launch event was also undetectable by satellite thermal imaging, unlike the massive heat signature characteristic of ICBM launches. It could give any country in the world a first-strike capability that other nations would find hard to counter. This also exploited a specific loophole that existed in anti-nuke treaties, since projectiles fired from a rail gun were not technically ICBMs, so the START treaties imposing limitations on ballistic missiles did not apply.

During REX's development, the Metal Gear engineers became concerned of what would happen if REX, after it was completed and doing solo ops in the field, was detected by the enemy and forced to engage in close range combat against conventional forces. They then decided that they could make REX's hull a weapon in itself. Although the program was completed, and had gotten fantastic results from supercomputer simulation, the military shelved the project before they could even install it (as the military viewed it as not being part of their regulations). However, REX's chief engineer Hal Emmerich secretly uploaded the data into REX anyway. Although the first actual prototype for REX was developed in 2005, it went through multiple prototype stages in VR while it was still in the design stage to correct various flaws before being developed. As REX was primarily tested via VR simulations, the Pentagon and ArmsTech needed to perform live testing to compare the simulation data with actual test results. Because of this, they started a field exercise at the remote military facility on Shadow Moses Island.

Sources: The Metal Gear Wiki, Metal Gear Solid, Metal Gear Solid 2: Sons of Liberty, Metal Gear Solid 3: Snake Eater, and Metal Gear Solid 4: Guns of the Patriots.
[*]Body and Subassemblies: Two Legs, one striker arm on the right side (the railgun), limited rotation turret (the "head"), one pod (the radome) on left shoulder.

[*]Drivetrain: One TL10 4,093.5kW Leg drivetrain in each leg.

[*]Arm Motors: One TL9 ST 350 Cheap Striker Arm Motor in Arm.

[*]Thrusters: One Ducted fan with 10,000 lbs. motive thrust in each leg.

[*]Cockpit: Basic Cockpit in turret with the No Extinguisher and No
Lifesystem downgrades.

[*]Built-in Weapons: Two 30mm X GAU-8R Avenger rotary cannons in turret facing forward with 2,500 shots each, Free-Electron Mobile Tactical High-Energy Laser (MTHEL-FE, [ArmsTech International V17 Vulcan Cannon, Searing LaserStorm High-Energy Cutter "Slice n' Dice"]) in body facing forward, four 178mm REX missile launchers concealed (see GURPS Vehicles p.42) in body facing upwards with 6 AGM-114P "Hellfire" HEAT missiles each, one 178mm REX missile launcher in each leg facing forward with 3 AGM-114P "Hellfire" HEAT missiles each, 18.5m Rail Gun (Special Ops Optimum Bombardment 422 "Widowmaker" 705mm launch tube) in arm with 3 AGM-129 ACM 200kt Nuclear Warheads, Retractable Sharp Claws (REX's foot spikes) in each leg.

[*]Weapon Accessories: 178mm REX missile launchers in boy are linked, MTHEL-FE has casemate mount, and all AGM-114P and AGM-129 ACM missiles are in anti-blast magazines.

[*]Sensors: 50-mile range PESA in pod facing forward, 125-mile range AESA in pod facing forward.

[*]Comsuite: Basic Comsuite in Turret.

[*]Electronic Countermeasures (ECM): Deceptive Jammer (Jam Rating 6) in turret.

[*]Power Systems: 9,171kW Gas Turbine (ArmsTech AGM 4000 "Behemoth") in body powers all systems except MTHEL-FE using 504.4gph of Diesel fuel. 20,000,000kWs TL9 non-rechargeable power cell (Laser Pro Pack) in body powers MTHEL-FE for 174 shots.

[*]Fuel and Fuel Tanks: 1,515-gallon self-sealing tank in body provides fuel for 3 hours of Gas Turbine operation.

[*]Access Space: 183.72cf of access space in body, 137.88cf of access space in each leg.

[*]Volumes: Arm volume 5,130cf, Pod volume 1,387cf, Turret volume 13,000cf, Body volume 41,800cf, each Leg volume 60,840cf.

[*]Structure: TL10 Medium Frame, Advanced Materials.

[*]Hit Points: Body HP 10,840, Turret HP 4,976, Pod HP 350 (Intentionally lowered), each Leg HP 13,923, Arm HP 5,355.

[*]Surface Features: Waterproof. Radical Stealth and Foot Rollers.

[*]Armor: Superscience TL15 Collapsed Matter Armor (see GURPS Vehicles Expansion 2 p.6) is PD 6 DR 300, except for pod, which is PD 6 DR 40.

[*]Statistics: Loaded Weight 139,753.74 lbs. Loaded Mass 69.88 tons. Empty weight 97,902.64 lbs. Empty Mass 48.95 tons. Mecha Volume 182,997cf (6,777.67cy). Size Modifiers:+9, Arm +6, Turret +7, Pod +5, Each Leg +8. Price $50,985,785. Health 12.

[*]Dimensions: Height 39.37ft., Length 24.46 ft., Width 18.9ft.

[*]ST and Reach: Body ST 21,680, Arm ST 350. Reach 21. Thrust Damage 36d. Swing Damage 38d.

[*]Ground Performance: Ground Speed 60mph (80mph with foot rollers). Ground Acceleration (see GURPS Vehicles p.129) 18mph/s. gMR 0.75. gSR 2 (gSR 1 with foot rollers). Ground Move 8/30 (8/40 with foot rollers). Jump-capable.


Whoa, sorry for the long post. I tried to keep the design as close as possible to the specifications on the Metal Gear Wiki, but there are some discrepancies, like the weight. As for the weapons, the MTHEL-FE is just a TL8 medium laser cannon from the GURPS Mecha weapon tables (the claws are there too), but the rest I created using the GURPS Vehicles design system. Their stats are as follows:
[*]X GAU-8R Avenger rotary cannon:
Malf: Ver. Dam: 6d x 5 1/2d: 1,800 Max: 7,600 Acc: 15 Wt.: 619.5 lbs. SS: 25 Cost: $30,738 RoF: 78 Pow.: 15.8kW
[*]178mm REX Missile Launchers:
SS: 20 RoF: 1/5 Wt.: 356 lbs. Cost: $6,950 Rating: 108 lbs.
[*]705mm Railgun Launch Tube:
SS: 30 RoF: 1/18 Wt.: 7,000 lbs. Cost: $90,000 Rating: 3,500 lbs.

And the missiles:
[*]AGM-129 ACM 200 kt Nuclear Warhead:
Malf: Crit. Guid: IG/SALH Type: Exp. Dam: 12d x 200,000,000 Spd: 250
End: 11,041 Max: 4,048,000 Min: 0 Skill: 21 WPS: 3,500 lbs. VPS: 70 CPS: $2,150,787
[*]AGM-114P "Hellfire" HEAT Missile:
Malf: Crit. Guid: SALH Type: Exp. Dam: 6d x 56(10) Spd: 487 End: 34 Max: 8,800 Min: 0 Skill: 17 WPS: 108 VPS: 2.16 CPS: $12,461

Please feel free to give suggestions or constructive criticism.