This looks interesting as something a bit different?
https://forum.dcs.world/topic/348126-sp-co-op-mp-expansion-a-dynamic-mission-and-sandbox-all-aircraft/
ABOUT EXPANSION
In Expansion, you are part of an ongoing larger battle to conquer the region. You are free to choose your own aircraft and mission (be it close air support, CSAR, combat patrol or similar), and if you choose to help your side's current tactical and strategical goals, that helps a lot. Holding off Red Forces from capturing Nalchik is likely and routinely accomplished by Blue's AI without your help. Expanding Blue's reach to hold half of the map requires moderate player skills. Turning the tables on Red and holding three airfields requires focus and dedication. Winning the scenario is possible, and a true achievement. Expect a full play-through to take some 15 to 20 hours, usually a lot more - this is a dynamic mission after all, and the opposing side will become increasingly aggressive when it loses. Expansion supports "persistence" (see notes) to save and resume your campaign at a later date. Expansion supports (actually: thrives) as multiplayer, so bring your friends. Since it’s a Sandbox dynamic mission, you can leave it running on a server for anyone to join on their own time.
You can win Expansion in single-player, and it is a lot more fun in multiplayer.
Expansion's strategic objective is to capture all four airfields of the region:
Nalchik
Beslan
Mozdok
Mineralnye Vody
The mission starts with BLUE side holding only one airfield: Nalchik. AI will assign tactical objectives as it sees fit. The battle progresses around you in real-time and responds to your actions. Both side's AI Admirals task their units dynamically and according to their tactical needs - so plan your own flights accordingly. And yes, Red WILL try and re-capture any strategic location that you took. And it will succeed if you don't help.
HELPING YOUR SIDE
The overall battle is controlled by AI Admirals for BLUE and RED that task their troops. They will direct their forces and assign primary and secondary objectives.
Initially, you should focus on supporting your side’s secondary objectives, as they help your side to expand control over the battlefield, and allow your side to secure a steady income that you (the players) then can spend on tactical support.
INCOME
When your side captures strategic locations (for example: the "Gigawatts Power Plant" south of Nalchik), these generate income for your side. The more locations that your side holds, the greater your income.
Another source of income is direct enemy attrition: for every enemy unit that a player destroys, your side gains some income - provided that the pilot can land their plane at a player-controlled airfield or FARP.
A third source of income is rescuing downed pilots and returning them to a player-controlled airbase or FARP.
A fourth is successfully inserting troops into enemy locations to capture them.
Your side's income is regularly gathered and added to your side's available funds. Funds are available to all players on the same side. And funds are meant to be spent - "funds are only valuable as long as they are used". Use them wisely.
SPENDING FUNDS
You spend your side's funds in various ways:
to directly repair and/or upgrade a location's defenses. For this you must land inside that location and come to a full stop. At that point you can access the menu to repair or upgrade local defenses. Note that all defenses must be repaired before you can upgrade. The cost for upgrades and repairs vary by location.
to order strategic upgrades / repairs. This transfers funds to your control authority and the AI decides where these funds are invested. The drawback is that you don't know where the funds will be invested. The advantage is that you don't have to be on location.
to order support in the form of SEAD, CAP or CAS flights for a region.
to order a strategic insertion force to attempt taking an enemy-held (or neutral) location. Which location to take is a decision made by your command authority.
And remember: there are few things less useful to a pilot than
altitude above you
runway behind you
fuel in the truck
funds still in the bank
CAPTURING STRATEGIC LOCATIONS
You win Expansion by capturing strategic locations that increase your income, and then by using that income in smart ways to further your campaign. So make capturing locations all over the map your goal. The first step is to wear down defenses: SEAD and CAS the location until it's next to helpless. Be wary that enemy AI can (and will) order repairs and reinforcements, so if possible, loiter near a defenseless location until it's really captured. Once captured, spend funds to beef it up.
If you have helicopter pilots among your players, the easiest way to capture a location is to make sure that there are no enemy units inside the area (check the F10 map), and then place your own units inside the zone. Some Helicopters (Hind, Hip, Huey, Hook) can spawn and transport troops (check Other->Airlift Troops).
If you don't have anyone who can chopper a chopper over the shed, you'll have to tough it out: see which tactical objective the AI is working at, support it, and occasionally transfer funds to order a capture attempt.
RESCUING DOWNED PILOTS
Quickly, the map will be littered with pilots requesting extraction. Some helicopters (Hip, Huey, Hind, Hook and Gazelle) are equipped for CSAR. Land next to the downed pilot (or hover close to them), and then return the pilot to one of your airbases/FARPs. Doing so will give a substantial boost to your available funds.
A NOTE ON ENEMY AI
Initially, enemy strategy AI is almost docile - it is content with holding most of the territory and killing you in a vaguely unfriendly way. This changes with the number of strategic locations that you capture. Once you start closing in on it, Red AI becomes aggressive, and at some point, positively vicious. So, enjoy the time when it just tries to crush you.
A NOTE ON PERSISTENCE (SAVING THE MISSION)
Expansion automatically saves the state of the mission every 5 minutes, so should you wish to end and later continue the mission, the maximum you lose are 5 minutes. All typical restrictions to DCS mission saving apply: