Warthog -> R/APV “Raptor”, SAAV “Groundhog”, SATV “Frontman”, AMTV “Shuttle”
R/APV - The Recon/All-Purpose Vehicle, or “Raptor Warthog”, is a re-do of the standard LAAG model. It comes with a high-powered machine gun turret and has less plating than most other 'hogs, making it an apt replacement for the LAAG and the Mongoose.
SAAV - The Specialised Anti-Air Vehicle, or “Groundhog”, earned it’s nickname from it’s ability to ground enemy aircraft. It’s armed with a quad-missile launcher and can fire up to sixteen consecutive shots before reloading (four from each launcher). It has reflective plating for defense against fuel rods.
SATV - The Specialised Anti-Tank Vehicle, or “Frontman”, is armed with a T6-2A Railcannon that rips through most human tanks in two shells (Talons, Scarabs, and Celestials are another story). The Frontman’s armour is thick enough to require more than one Rail shot to breach, in most cases.
AMTV - The Armoured Military Transport Vehicle, or the “Shuttle” (also called the “Long Warthog” due to it’s 6 wheels and long length), holds up to 8 passengers and is almost twice the length as the four-wheeler 'hogs. It’s used as a fast-delivery system for reinforcements and supplies. The armour on it is equivalent to that of an older Scorpion tank.
Lastly, all Warthog turrets and plating is interchangeable. You can have a heavily-armoured machine gun 'hog, and you can have a lightly-armoured rocket hog. The one exception is the Shuttle’s elongated form, which doesn’t allow for turrets.
Scorpion -> APT “Mastadon”, ST “Loki”
APT - The All-Purpose Tank, or “Mastadon”, is equipped with twin all-purpose cannons much like the original iteration of the UNSC’s Scorpion tank (or more closely related to the Grizzly). The turret that was originally manned by a separate gunner during the days of the Earth invasion has returned to the main cannons as an autonomous “autoturret” that picks off infantry units based on proximity to the tank’s cabin (to prevent jackers). The armour has been made stronger without being too much thicker, keeping the Scorpion’s surprising mobility while increasing the overall resilience of the vehicle.
ST - The Specialised Tank, or “Loki”, gets its nickname for it’s uncanny - and often unexpected - ability to switch weapon servos in battle. It can select from dual railguns (anti-armour), tracked missiles (anti-air), and dual cannons à la the Mastadon (with an extra autoturret for anti-infantry purposes). The Loki suffers from less armour to prevent a loss of mobility, what with all the servos being stored within the tank.
HMAWP - The “Talon” Heavy Mobile Assault Weapons Platform is a marvel in size, damage output, and most especially, cost. The Talon is three Mastadons long, three tall, and six thick. It uses massive thrusters to hover around a hundred feet over the battlefield (about as tall as the newer Scarabs) and provides extensive fire support via rocket pods, railcannons, autoturrets, and a MAC gun. When damaged, a large section of the Talon will eject from the whole platform and attempt repairs before rejoining with the main body. Talons are completely autonomous.
Hornet -> AA “Crane”, RC “Eagle”
AA - The Assault Aircraft “Crane” is armed with quad-rocket pods, a flare pod, and two autoturrets. Its crew is one pilot, and may contain two turret operators if the autoturrets have been swapped for conventional machine gun or grenade launcher turrets (à la Falcon).
RC - The Recon Craft “Eagle” is an autonomous drone that is armed with four autoturrets and a scanning system for reconnaissance. It has less armour than a Crane and can be remotely piloted if the need arises.
Pelican - MTC “Pelican”, MT/AC “Majesty”
MTC - The Military Transport Craft “Pelican” is the new and improved iteration of everyone’s favourite troop transport. With expanded armour, two extra thrusters, three autoturrets, and twin missile pods, the new Pelican is a strong addition to the ground-based UNSC forces.
MT/AC - The “Majesty” is a Military Transport/Assault Craft that forgoes larger troop space for more armaments. Numbering six autoturrets and twin railcannons, the Majesty packs a serious punch, but moves slow and is harder to maneuvre due to its heavier frame.
Shortsword/Longsword -> ASF “Scimitar” - The Assault Space Craft, known amongst pilots and soldiers alike as the “Scimitar”, replaces both the Shortsword bomber and the Longsword space fighter, and outdoes both. Roughly the same size as the Longsword and equipped with a dual-Fujikawa engines, the Scimitar is a highly-mobile craft, keeping in line with its predecessors. The expanded firepower - consisting of four frigate-quality railcannons and a mini-MAC like that found on the outdated Halcyon-class frigates - make it a force to be reckoned with, and the bombing payloads it makes use of closely resemble the unguided bombs of the Carpet Bomb, but explode in a much larger radius.