@JD_Wang I'm fairly sure Sahrani works fine. I'm thinking about building an RHS conventional war on there myself this week to keep me going until the next ALiVE release, which as I understand should fix the civilians issue.
I decided to go with Chernarus and cross my fingers it will work. I'm finding the best mission making method for me right now is to build the bases and add everything non-ALiVE related first before plunking down the ALiVE modules (for whatever reason doing it the other way around causes me issues). So if it doesn't, I'll have put in a lot of unnecessary work. :) I should probably mock up a quick test just to be sure.
Still undecided on exactly what kind of mission I want it to be though. I'm thinking of giving the player side (Russia) control of the two smaller bases, and have us outnumbered by the Ukranians who'd also control the main airfield (that we ultimately would need to take over to cut off their resources and "win."); barring any better ideas.
I kind of wish the winter version of Chernarus was indexed or what have you, because it would be cool to make the same mission on both maps. Maybe Arma 4 will have dynamic seasons. :)
What maps are you considering?