ESN-4M 'Caballus' . 'Caballus, multiple hostiles approaching your location, be advised.' "Copy. Disengaging neural limiters. Activating E.D.G.E." -Silas Thorne piloting the Caballus during a battle in Space Colony 7 . Unit Type: Multirole Mech
Height at shoulder: 40 feet
Weight: 50 Tonnes
Maximum Operation Time: Virtually unlimited
Top Speed: Mach 1
Max Acceleration: 340 m/s (under Earth's gravity)
MBR-X04 Rapid Beam Rifle [Hand Equipped]
2x 110-mm Machine Cannon [Forearm mounted/1, fixed]
S-RAM/8 Short Range Anti-Mech Burst Missile Launcher [Shoulder Equipped/4, optional]
>[High-Ex Burst/Incendiary/Flash/Smoke/Chaff] Rocket Propelled Grenade compatible
2x Beam Saber [Side Hip Mounted, detachable]
Composite Weapon Module [Arm Mounted, optional]
>CRW/B-4(R) Folding VibroSword + HLS-M78 Precision Plasma Launcher
'Terminus' Gamma-Beam Bazooka [Rear Hip Mounted, optional]
Particle Field Shield
2x 'Orion' Plasma Thruster [Rear Shoulder Mounted, detachable]
The fourth incarnation (Red Ivy being considered the second due to foreign technology being incorporated. Records of the third version were redacted) of the ESIONE mech, Helios ST's flagship model, the Caballus is a leap in technological development, created as a joint protect between Helios and Dawnbreak Avionics, a splinter group of Helios ST.
One such advancement of engineering is the Caballus' Endo-Steel/Titanium Alloy frame, which weighs 30% less than the standard frame used for the previous versions of the ESIONE and Versailles units. Alongside the lightweight alloy used in it's frame, the Caballus is equipped with Avalonium armour plates, doubling it's physical defense capabilities compared to the standard armour. Avalonium is very similar to the Endo-Steel/Titanium alloy, the only difference is that it is only possible to produce it in Jupiter's upper atmosphere, as the gas giant's immense gravity well is a crucial factor in the production of the ultra-dense yet lightweight Avalonium.
Another amazing piece of technology is the Caballus' E.D.G.E. System, which stands for Emergency Defense Galvanosynaptic Enhancer System. It is an defensive system that stimulates and connects to the pilot's nervous system directly via quantum waves, allowing for ultra-quick reaction time and reflexes, though this will put a strain on the pilot's brain.
Rapid Beam Rifle
S-RAM Launchers covered by shoulder armour
S-RAMs in action
Beam Saber and Particle Field Shield
Composite Weapon Module
VibroSword (Also known as a sonic blade, is a hand-carried weapon. The blade vibrates at a very high frequency to increase its cutting ability. While having very little visible movement the vibroblade is actually striking the target thousands, perhaps millions of times per second. Each strike, chips away a bit more armor. This happens so fast that the blade appears to "slice" through armor. In addition the unit, when wielding the weapon, can focus plasma around the blade. The green area is the Plasma Launcher emitting a beam to heat up the blade, amplifying it's cutting ability)
Former leader of the MRX (Maelstrom Response) Team during the Maelstrom Crisis and later the subsequent events of the Seperation War and the dissolution of the Nexus Force, Silas has been inducted into a private security force financed by Helios Science/Technology to root out and eradicate any A.N.F.U. (Anti-Nexus Force Union) Remnants or other radical groups. This security force would later be known as D.A.R.T. (Defensive Action & Response Team) after Earth is split between three superpowers (COUGHCOUGHIMHINTINGATYOUTWITCHCOUGHCOUGH). Though the D.A.R.T. HQ is stationed somewhere in East Asia, the organisation operates globally and throughout the Space Colonies under various member companies.
During an the attack of a splinter nation in West Europe which had different ideals than the superpower controlling that region, Silas was force to exit the Caballus in order to ensure the safety of an important politician amidst a chaotic Mobile Suit battle. With the Caballus unguarded, Sarah, a local military officer, took the opportunity to use the powerful Mech to defend her nation, much to the surprise of Silas when he finds the Caballus missing. This is mainly due to the Caballus being neural-locked to Silas and only individuals with almost exact brainwaves (this extends to thoughts and intentions of a person) can bypass the lock. Proving to be an adept mech pilot despite only having basic training, Sarah would soon be recruited by D.A.R.T. . She would subsequently become Silas' girlfriend.