Kalran: Tales of the four nations/Aegis Defense Force

Before his final battle Abraham, the hero of the Fenrirs, had formed the ADF in secret. Knowing the threat the Reclaimers can become to protect Alcradia.

And since then the ADF is a secret task force, only known by the leaders of the world and high ranking commanders, whose sole goal is the protection of Alcradia and the destruction of the Reclaimers. Their forces, comprising of every race, armed with cutting edge technology, classified to the world, to take on their foes with swift and devastating surgical strikes, taking on forces that always outnumbers them and winning with little casualties.

Tactics
The ADF represents an elite task force, playing more like real time tactics game like dawn of war 2 and World in Conflict. Each of their units can take on their foes equivalent that outnumbers them four to one and win. Combining speed, power, toughness, and devastating abilities that allows them to steamroll their foes. And with how their veterancy work means a fully ranked ADF units becomes a one man army. With their control tower, the closest thing they have to a base, allowing their forces to mobilize anywhere.

But all this power only comes at late game. And in the early game they struggle, due to how expensive and limited their units are, since their cost barely justifies its power and having to rely on universal upgrades and veterancy rank up to edge out their foe, and with their control tower being their only production facility means it also takes time for their forces to be on the battlefield. But if they're power is left unchecked then they will steamroll their opposition with little resistance.

Commanders

 * Emilia Calavera: ADF strike force commander (Classic). Voiced by Cherami Leigh
 * Jerome Dalton: ADF air supremacy commander (Airforce). Voiced by Brian Drummond
 * Aisla Gibraltar: ADF mobile defense commander (Defense). Voiced by Erin Ebers
 * Pina Torres: ADF special operations commander (Infantry). Voiced by Jeannie Tirado
 * Randal Armstrong: ADF breakthrough commander (Armor). Voiced by Matt Mercer
 * Charles Nimitz: ADF naval ops commander (naval). Voiced by Armen Taylor
 * Christa Locke: ADF commando unit. Voiced by Grey Griffith
 * Rianna Haley: ADF announcer

Mechanic

 * Quality over quantity: The ADF are the epitome of an elite task force, to the point that each unit has a generated name, being the only faction where all their units have a cap, from 4 to 1, limiting their numbers. But compensates by being superior to their equivalent with little weakness. And their units will gain an upgrade, similar to a UCA ace upgrade, per veterancy rank, up to five, alongside a passive increase to damage and health and powerful upgrades from the sword branch.
 * Anywhere, anytime: Compared to the other factions the ADF only has one base called the Master Crawler, a giant machine and literal moving castle that serve as a self contained base, where their entire army is built from as it moves. Crawlers cannot gain experience on their own. They can, however, be globally promoted in the respective queues of the Master Crawler up to four times, one rank at a time, each time consuming more time and money. Besides benefiting from normal veterancy bonuses and distinctive veterancy upgrades, a leveled up Crawler also upgrades all protocols it controlled to its level, i.e. level 2 protocols for veteran crawlers, level 3 for elite, level 4 for heroic. Divine Crawlers, however, do not upgrades their protocols to a fifth level. Instead, mini-crawlers will unlock the Ultimate Weapons of their specialty, while the Master Crawler starts spawning superheavy creeps. Do notice that the ADF has no tier system: all units can be accessed without any promotion to any Crawler. And being the toughest base out of all the other factions, requiring the enemy to destroy it three times. But in the event its destroyed the ADF will instantly lose.
 * Tech tree:
 * Sword: As the main attack force of the ADF. The sword branch is responsible for providing their forces powerful upgrades to further improve them and protocols built to shatter their foes
 * Spear: Tasked with protecting the crawlers and territory. The spear branch provides upgrades to the ADF defenses, crawlers and provides protocols to protect their soldiers and keep them alive
 * Bow: To support their forces. The bow branch provides upgrades to their creeps, logistics, and grants protocols to support their forces and weaken their allies

Trivia

 * Their faction gameplay is a combination of the Task force talon from acts of war, order of the talon from Red alert paradox, the Foehn revolt from Red alert 2 mental omega, Nova and Tychus from starcraft 2 coop, moba style games, and the every faction from tactical RTS like dawn of war 2, world in conflict, commando, and desperado.
 * The faction themselves is based off the GDI from C&C, mainly the Steel Talons from Kane's Wrath and in Tiberian Twilight and special task forces in the real world.