Shattered Paradise is an expansion for Tiberian Sun on OpenRA, its goal is to (im)balance the game by adding new factions (Mutants, C.A.B.A.L. and Scrin) and reworking the original sides, all of this to create a game a little more varied and balanced than TS. The mod puts a lot of emphasis on making the factions as asymmetric as possible.
how much work is making a buildup compared to the final frame of the building itself that is shown all the time?
hm, buildups don't take that long, like 15 or 30 minutes, since all you are doing is coordinating how all the objects are going to be appearing on the screen. Buildings on the other hand, that depends on the concept, if I have a concept, then it could take from 30 minutes to 3 hours, if I don't have one, and normally I don't have any, then it takes longer, I can't say how long because it becomes trial and error.
Looks cool