RTF is a global modification that replaces all towns in the game.

That's an interesting idea, and now let's continue. Angels invaded the dark empire and landed in Grimheim, but the north of the dark empire is populated by light elves, and they are fighting back against the angels. Enraged, the angels summon the forces of darkness and go mad; now they are servants of the Void, but the dark dwarves were preparing for the return of their former masters and are putting up a good fight. Further south, the dwarven army captures the settlements abandoned by the horde and sells their inhabitants into slavery. The orcs join the forces of evil, and the remaining forces of evil invade Grimheim. The dark elves attack the legions of demons from the flank, and some warlocks go to the mages of the Chimera's Lair, who live in Kartal on the Egin peninsula, and teach them dark magic (or organize a cult of the Chimera). After the destruction of the main forces of the dark elves, their remnants unite with the surviving mages and create a new army (Nexus and the fusion of elements, perhaps Arcania). In the east, there are no more orcs, and the slave traders begin to send ships to the islands of Pao and organize a pirate army.