And maybe, behind one of these doors there is a console that allows us to get back control over the swedish machines and gives us access to a hidden RTS-mode.
You activate the console, the screen zooms in onto a display before you, the command system turns on and gives you an isometric perspective of östertörn.
“Welcome back, commander!” it says (with the voice of fnix). “Awaiting your commands”.
You get the ability to build outposts at the control points and to control tanks, harvesters, hunters, runners and seekers. Now there are also control points in the north coast, marshlands, mountain region and archipelago, especially at the landing sites of the soviets, who turn them into bases, plus some more.
There are even some hidden production sites that allow you to produce new machines at certain locations. Many sites are already destroyed, but can be repaired with ongoing progress.
So maybe initially you’re just able to use the remaining machines to defend yourself and to produce prototype runners and seekers with a basic setup.
You’ll be able to unlock upgrades for the machines and the bases, depending on their class (other weapons/modules/attachments) and if you reached a certain upgradelevel you become able to upgrade to military, fnix and even apoc class.
Of course you’ll need ressources.
Seekers have an additional use. They can locate ressources on the map. Ressources are metal, electronics parts, fuel cells.
All of these ressources can be found randomly in every wreck, no matter if it’s a car, a truck, a jet or helicopter or swedish or soviet machine. It’s some kind of recycling, with some guaranteed values against bad luck.
You need to use harvesters to harvest these ressources. Logic, isn’t it?
To become able to produce hunters you have to reach a specific level for a base, then the hunter-spawner becomes available.
Harvesters and tanks instead are produced at specific fixed locations on the map that have to be found/unlocked and repaired to get access. There could be a hangar or hidden elevator that spill out the produced tanks and harvesters, which then have to move to where you want them. Every region could have at least one of these locations, which can get upgrades, too. (Weapons/Attachments/modules/classes)
A reaper on the other hand could be realized as a superweapon with a cooldown and a limit of 1 at a time. It would be produced the same way as tanks, in an unlocked production site, and therefore just can be activated in regions where one of these sites are unlocked. It can move anywhere, but that takes time of course. Activating a reaper at one site also holds the current production and priorizes the finishing of the reaper.
Your task: defend östertörn against the soviet machines, rebuild the defensive systems and clear all regions step by step.

That would be awesome.