United Earth Marine Corps units

Infantry
Trooper Recruit -> Marine Recruit

Trooper -> Marine

Hvy Trooper -> Heavy Marine

Repeater Trooper -> Automatic Rifleman

Mounted Trooper -> N/A

Anti-Air Trooper -> AA Operator

Grenade Trooper -> Mortar Operator

Mechs
Scout ->

Transport Mech ->

Strike Mech ->

Hvy Strike Mech ->

Mech Destroyer ->

Hvy Mech Destroyer ->

Assault Mech ->

Hvy Assault Mech ->

Heavy Mechs
Artillery ->

Hvy Artillery ->

Anti-Air Mobile ->

Hvy Anti-Air Mobile ->

Pummel ->

Hvy Pummel ->

Naval Units
Utility Trawler ->

Transport Ship ->

Lt Frigate ->

Frigate ->

Adv Frigate ->

Destroyer ->

Hvy Destroyer ->

Anti-Air Destroyer ->

Hvy Anti-Air Destroyer ->

Cruiser ->

Adv Cruiser ->

Aerospacecraft
Air Transport ->

Fighter ->

Fast Fighter ->

Adv Fighter ->

Bomber ->

Enh Bomber ->

Adv Bomber ->

Intercepter ->

Attacker ->

Special Units
Bounty Hunter -> N/A

Dark Trooper Phase I ->

Dark Trooper Phase II ->

Cannon ->

Air Cruiser ->

Other
Worker ->

Medic ->

Power Droid -> Mobile Power Generator (MPG)

Cargo Hovercraft ->

Probot ->