Human Vehicles
The UNSC Warthog (Light Reconnaissance Vehicle) is the main vehicle used on ground. This variant comes with a fast-firing chain gun, or Light Anti-Air Gun (LAAG). The vehicle itself is extremely effective in fast combat and is the main defense against the Covenant's Banshee gunships.
Passengers: 1 driver + 1 passenger (+1 gunner)
Armament: 12.7mm three-barreled M41 LAAG x1
The UNSC D77-TC Pelican dropship is used mostly for transporting up to 10 ground troops over distances of land. The Pelican can also carry and drop one LRV in an emergency. The "chin gun" is extremely effective against ground troops and optional rocket pods work well against heavily fortified positions and vehicles.
Passengers: 1 pilot + 1 copilot +1 flight engineer + 10 troops
Armament: 70mm "chin gun" + 102mm rocket pods
The M808B Scorpion Main Battle Tank (MBT) is the only tank currently used in ground combat by the UNSC. It's heavily armored with four long treads which up to four passengers can ride. Its weaknesses are the slightly exposed drivers behind a glass cover.
Passengers: 2 marine / 1 SPARTAN driver + 4 riders
Armament: 90mm HV (High Velocity) + coaxial gun: 7.62mm AP-T (Armor Piercing, Tracer)
The M12 LRV rocket variant is based on the M14 LRV, painted black and equipped with a high-calibur rocket launcher.
Passengers: 1 driver + 1 passenger (+1 gunner)
Armament: Rocket launcher (3 tubes)