I've had this idea for some time where you play as Nogovan SpecOps in the near future (2006-07). In this mission, a civil war breaks out in the unstable Republic of Malden. NATO sends a peacekeeping task force which includes the newly inducted Nogova and possibly Russia (remember, the Cold War is officially over...). Anyway, peace is restored, but Everon gets angry with NATO, and executes terrorist attacks in Nogova because it is the closest NATO country.
In response, your squad is inserted into Everon to kill commanders, ambush convoys, destroy supply depots, etc. To do this you may also be assisted by Rangers, SAS, and who could forget, SpetzNatz! Don't know who you would use as the Nogovans or the Everonians, but this is just an idea. You could even turn it into a campaign with missions about the invasion of Malden and peacekeeping operations. Any input is welcome.