1) It is about many factions fighting for supremacy, but I will also plan to eventually add a story. It extends and remakes troop trees to fit the lore.
2) It is singleplayer
3) It is a war with a faction, "Arthav"(Rhodok Replacer), made from local highlanders and immigrants from an ancient faction that is gone, on one side, and three factions, respectively making one massive faction called the UCZ, and the three factions are: The Zimmorian Raiders(Nord Replacement), The Union(Swadian Replacement), and The Confederacy (Vaegir Replacement).
The factions:
Arthav: replaces Rhodoks, and it has very strong endgame units: The immigrant tree, which hass its ONLY cavalry, the highlander, a very strong footman, the gunners,and the machinebowman.
Arvbania: replaces Khergits, and has well-armored soldiers, and an early cavalry.
The Union: replaces Swadia, but has large steppes, and thus, some units similar to Khergits.
The Confederacy: replaces the Vaegirs, and is very similar, but with an extra cavalry upgraded from the knights, and a tribal archer group known as the fluffudo.
Zimmoria: Replaces the Nords, and is the same, effectively, but with heavy cavalry.
Masatmat: People of the desert, replacing Sarranids, they are the same, but will be changed.
I will post more updates based off of questions, and when it is ready, I will post it.