Master Chief

"Hood: Master Chief, you mind telling me what you're doing on that ship? Master Chief: Sir... finishing this fight."

- Master Chief at the end of Halo 2

John-117, better known as Master Chief, is the main protagonist of the Halo franchise. He appeared in the 18th episode of Death Battle, Master Chief VS Doomguy, where he battled Doom protagonist Doomguy.

Biography
In 2517, John was a six-year-old human living with his loving mother and father on the earth colony Eridanus II. One day, he was kidnapped by the UNSC and replaced by a clone to be a Spartan super soldier. His job was to help the UNSC in the intergalactic war against the Covenant, an army of dangerous aliens trying to turn on devices that would destroy all organic life in the universe called Halos. In his training, he was said to be VERY lucky and had a great intellect. After his regular training, he was injected with a super steroid, boosting his health, speed, and reflexes dramatically, as well as making him 10x faster and stronger, both physically and mentally. After reaching the rank "Master Chief Petty Officer", he led the other Spartans to defend the humans from any threat and gained a full body, half ton armor suit that was near indestructible.

Spartan-ll Augmentations

 * 15x Stronger Skeleton
 * Muscle Increase
 * 300% Increased Reflexes
 * Better eyesight & Perception
 * Boosted Tissue Growth
 * Lactase Recovery Decrease
 * Heighted Memory, Intelligence, & Creativity

Mark VI Mjolnir Armour

 * Brain linked reactive circuits
 * Force Multiplying Circuits
 * Titanium Alloy Plating
 * Heat Resistant
 * Motion Tracker
 * 5 second regenerating energy shields
 * Weight: 1000 lbs

M6D Magnum

 * Ammo: 12.7 mm
 * Range: 400 ft
 * Scope: 2x

M7 Submachine Gun

 * Ammo: 5 mm
 * Range: 155 ft

M9 Frag Grenade

 * Kill Radius: 16ft

MA5C Assault Rifle

 * Ammo: 7.62 mm
 * Rate of Fire: 650 RPM

BR55HB SR Battle Rifle

 * Ammo: 9.5 mm
 * Range: 3100 ft

M90 Shotgun

 * Type: Pump
 * Spread: 15 Pellets
 * Ammo: Soellkraft 8-Gauge Shells

M41 Rocket Launcher

 * Ammo: 102 HEAT Charge Rockets
 * Scope: 2x

SRS990-S2 AM Sniper Rifle

 * Ammo: 14.5 mm Fin-Stabilized
 * Range: 7545.9 ft
 * Night-Vision Mode

M6 Spartan Laser

 * Shot Limit: 5
 * John-117's Most Powerful Weapon

Special Equipment

 * Overshield
 * Active Camouflage
 * Radar Jammer
 * Regenerator
 * Deployable Cover
 * Power Drain
 * Bubble Shield

Sangheili Weaponry

 * Type-25 Plasma Pistol
 * Type-25 Plasma Rifle
 * Type-51 Carbine

Type-1 Plasma Grenade

 * Kill Radius: 13 ft
 * Sticks to Targets

Type-1 Energy Sword

 * Length: 4.15 ft
 * Weight: 5.2 lbs

Background

 * Height: 7'0" [w/ armor]
 * Weight: 1,287 lbs [w/ armor]
 * UNSC Marines SPARTAN-II
 * Defeated 3 Armies
 * Destroyed Halo 04 & The Ark
 * Super Soldier
 * Top Speed: 50+ mph

Master Chief

 * More Weapons


 * Broader Variety of Skills


 * Superior Training & Experience


 * Near-Invincible Body & Armor


 * Regenerating Shields


 * Superior Reflexes

Doomguy

 * Stronger Weapons
 * No Long Range Weaponry
 * 1.14x Faster
 * Weaker Defense
 * Useful Backpack
 * Reliance on Power-Ups Creates Inconsistency

DBX
Master Chief appeared as a combatant on the second episode of DBX, where he fought Jango Fett from Star Wars and won.

He appeared in DBX again to take on Samus Aran from Metroid, this time however, he lost.

Trivia

 * Master Chief is the first character to win both Death Battle and DBX, following him being Spawn, Roronoa Zoro, Raiden, Doomsday, Zero, Akuma and Samus Aran.
 * Master Chief is also the ninth Death Battle winner to lose in DBX, with the previous eight being Amy Rose, Spider-Man, Terry Bogard, Iron Man, Link, Guts, Strider Hiryu and Lucario.
 * Master Chief is the second character to fight twice in DBX after Sasuke Uchiha. He is, however, the first combatant to win and lose a DBX.
 * Master Chief is the first combatant to have a 3D model and a 2D sprite on DBX.
 * Master Chief is the second Death Battle winner to lose against another one in DBX, with the first one being Strider Hiryu.
 * Master Chief is the only Microsoft character to not also be a Rare character.