Because I was board and felt like posting, a decent version of such a miniatures skirmish game:
Transformers Skirmish
Factions:
Confrontation: Mix and match, cards,
Starship troopers & 40K: minis with books
Wramachine: Books, clear factions,
Quintissons
Autobots
Decepticons
Junkions
Unicron
Kranax’ race
Minicons
Predacons
Maximals
Omnicons
Lists:
Leaders
Lieutenants
Solos
Units
Artillery
Speciailists
Titanic Units
Autobot forces (Generation 1)
Leaders
Autobot Prime (Optimus Prime, Ultra Magnus, Rodimus Prime)
Lieutenants
Autobot Lieutenant (Jazz)
Substitute commanders (Iron Hide, Kup)
Solos
Spy (Mirage)
Medic (Ratchet)
Science officer (Perceptor)
Communications officer (Blaster)
Units
Autobot guerrillas (Female Autobots, about 6)
Autobot commandos (Sunstreaker, sideswipe, bluestreak, red alert, prowl, windcharger)
Autobot militia (Huffer, bumblebee, cliffjumper, throttlebots)
Iacon guard (Young version of council from comics)
Autobot soldiers (Kup, warpath, Brawn, hound, blurr, arcee, smokescreen)
Artillery
Autobot city defence missile platform (from movie)
Autobot mobile support unit (Iron hide with cliff jumper)
Speciailists
Triple changers (Springer)
Earthdesigns (Dinobots)
Powercons (Robot mode only for more power)
Air infantry (Aerial bots)
Titanic Units
Guardian Robot (Omega Supreme)
Fortress Robot (Metroplex)
Decepticons
Leaders
Warleader (Megatron, Galvatron)
Lieutenants
Second in command (Starscream, cyclonnus)
Subourdinate (Shockwave)
Solos
Commincations officer (Soundwave)
Spy (Laserbeak)
Assassin (Nightbird)
Defector (Wheeljack from armada)
Units
Air infantry (Thundercracker, skywarp, dirge, ramjet, other one)
Rogues (Combaticons)
Allies (insecticons)
Decepticlones (from video games, several varieties)
Decepticon infantry (stunticons)
Sentinels (ground, clones, hover)
Artillery
Transfixatron Ray
Drone gun (from video game)
Speciailists
Triple changers (Blitzwing, astrotrain, sixgun)
Decepticon hovercraft (from videogame)
Decepticon infantry (stunticons)
Powercons (as above)
Titanic Units
Fortress Robot (Trypticon)
Quintissons
Leaders
Alpha Quintissons (Alpha Q from Armada)
Lieutenants
Quintison Judge
Solos
Quintison Warden
Quintison Judge
Quintson Scientist
Units
Quintison Judicial Council
Consumer good robots (Orion Pax, dion, A3, Aleeta)
Military hardware robots (decepticons to be)
Sharkticons (original + movie)
Captives (like Kranax’s race, autobots)
Quintison Gaolers
Artillery
Gun emplacements (off of ship)
Speciailists
Decepticon ally (Scorponok in armada)
Robot Craken (from movie)
Quintison Gaoler
Omnicons (Cruellock, Divebomb, insecticon, battle ravage)
Titanic Units
Dark Guardians
Quintison ship
Unicron
Leaders
Reborn Champions (Galvatron)
Lieutenants
Revived Lieutenants (Cyclonus)
Resurrected Subourdinates (Scourge)
Solos
Avatar of unicron (Sideways from armada)
Manifestation (Nemesis Prime from armada)
Units
Armada infantry (cyclones clones)
Sweeps on foot (scourge clones)
Minicons
Possessed Decepticons
Artillery
Anti-matter Cannons (galvatron transformed)
Speciailists
Decepticon ally (Thrust from armada)
Armada dedicated flyers
Sweeps
Titanic Units
Unicron
Ship