Participants in the Battle for Earth

There were numerous participants in the Battle for Earth. The UNSC consolidated a number of their forces at Earth, allowing for large deployments of forces.

Ground forces

 * UNSC Marine Corps
 * Orbital Drop Shock Trooper
 * 2nd Shock Troops Battalion
 * 7th Shock Troops Battalion
 * 1st Platoon
 * 65th Shock Troops Division
 * Alpha-Nine
 * Alpha-Five
 * 3/1 Bravo
 * 405th Marine Infantry Division
 * A Company
 * 17th Marine Regiment
 * 77th Marine Regiment
 * E2-BAG/1/7
 * Kilo Company
 * First Platoon
 * Third Squad
 * M/LAT-16
 * S/VRC-8
 * S4/BLCE/1/7
 * S4/BRT/1/7
 * Alpha Company
 * Charlie Company

Fleets

 * UNSC Home Fleet
 * Sixth Battle Group
 * Sol Defense Group 3/A-5
 * Fifth Fleet
 * Second Fleet
 * Seventh Fleet
 * Battle Group Victory
 * Sixteenth Fleet

Vehicles
The UNSC used a variety of different vehicles during the battle. They utilised a variety of M12 FAV variants. The M12 LRV, the M12G1 LAAV, and the M831 Troop Transport. The MBT used by the UNSC in the battle was the M808B MBT. The M312 HRV was also used to transport cargo.

The UNSC also employed different types of aircraft. The UH-144 Falcon was used during the battle. The AV-14 Attack VTOL and the AV-22 Sparrowhawk were both used as ground support aircraft. The D77-TC Pelican was also used early in the battle as a cargo transport, but was eventually switched for the D77H-TCI Pelican, later. The F-99 UCAV drone aircraft were also deployed.

Units

 * Fleet of Sacred Consecration
 * Truth's fleet
 * Fleet of Furious Redemption

Vehicles
The Covenant used a lot of different types of ground vehicles during their siege. The Type-32 Rapid Assault Vehicle were deployed early on, but were eventually overtaken by the Type-25 Rapid Assault Vehicle. As land transportation, the Covenant used the Type-29 Troop/Vehicle Transport. As their main battle tank, the Covenant used the Type-26 Assault Gun Carriage. Their main anti-air vehicle was the Type-52 Anti-Aircraft Artillery. Finally, to assist in breaking down any defenses, the Covenant used the feared Type-47 Ultra Heavy Assault Platform in both the Protos variant, and the Deutoros variant.

The Covenant's main ground attack aircraft was the Type-26 Ground Support Aircraft. Two variants of which were used during the battle; the T26A and the T26C. The Type-52 Troop Carrier was also used as a cargo transport for the Covenant.

Units

 * Fleet of Retribution