a few suggestions in the veign of the plauge inc nurax worm, and necroa virus.
-rise of the terminators (aka a robot rebelion).
-zombie outbreak.
-reign of fire (see the movie. long story short dragons wake up from hibernation and start killing everything).
-gate outbreak (see manga: Gate - Jietai Kare no Chi nite chapter 1. long story short our world is invaded by a fantasy world's empire).
-the annexing of canada (fallout inspired)

and a normal-ish one
-zimbabwe (the current situation with the ongoing civil war and ebola outbreak)

Donbas- and Crimea-like scenarios. "Insurgency" and influence from a powerful opponent state for boh.
Donbas would offer a strong military component to the insurgency. Crimea - a bigger challange with locals as there are at least 3 groups of locals with often opposing desires to please.

- [must have] GNU/Linux support
- [nice to have] cross-platform multiplayer, if possible

Cold war era stuff maybe? (i dont expect this particular idea to be anything other than a mod but maybe ww2 pacification setups?) I think everyone else has already made the reasonable ideas at this time.

How are liberals and the press being the modeled in the game.One could say they stop a proper military campaign to pacify.

Hello, my only suggestion so far would be not to use real footage of U.S troops fighting in afghanistan or iraq as a selling point. That's quite honestly disrespectful and real combat is not a game.

Could you consider making a Rhodesian, Congolese, or Angolan scenario?

This is my idea for a potential Airborne Cavalry (helicopters) expansion later on.
So instead of a tank depot, we would have an airfield, right? And perhaps, the airfield could give a little buff for airstrikes and drone surveillance by decreasing R&R time?
Although of course, it would be a high value target for the insurgents and you would have to defend it, perhaps there could be upgrade options to install a garrison and defenses.
Also another crazy idea, there could be an option for air-dropped humanitarian aid. It could give you support level boost over an area, but if it was controlled by insurgents or near an insurgent-held area, there could be the possibility of the insurgents capturing the aid for themselves and give them a small strength boost as well as nullifying the local support boost. While on the other hand, if it was controlled by Coalition or National Army units, it would give a small combat buff.

I'd love to see multiple rebel groups, each with their own agendas. Some might want merely a region autonomy (lose certain level of control over a territory, in exchange for stability), but then they also help you once you grant their demands; or groups that will spring up as specific rebel factions when you align yourself too strongly with Coalition forces, for instance and don't build up your National Forces.

Also, along those lines, give you a chance to work with multiple outside organizations. You can go a private route, hiring international mercenaries instead of coalition forces, or you can try to get Chinese or Russian aid instead of relying on a Western Coalition, or something like that. All of the international partners would have their pluses or minuses, of course, and depending on how you balance them, you might get them to support the insurgent/opposition forces.

Also a more competitive/organized opposition force could be interesting too. A proper civil war scenario where the opposition is essentially a second player-nation. I'm not sure how that would work, but it could be quite interesting.

I guess a foreign invasion in a WAY future update where the people funding the rebels are using them as a tool to weaken your efforts and once they invade you will have stall (yes stall not win) the invasion force until the coalition army arrives to beat them back.

many languages ​​but not Polish - why :(

More religion additions, aka buildings associated with them. Hire fake insurgents to trick the UN or something, getting more cash in the process to 'take care of the (fake) insurgents). Maybe the ability to stop foreign country (crypto)currency transactions, earning you reputation or money (increases corruption) or failing (increasing insurgency).

I'd love to be able to play as the insurgents.

Mouse staying inside the borderless window mode should be standard. I keep accidently moving the mouse over to my secondary monitor and the game minimizes :/

Will the mobile version recieve the custom scenario creator, or will that be unique to the PC version?