Twilight 2000: Operation Navarone

In early August 2008, Russia invaded the Republic of Georgia from the North.  The Georgian government had expected a Black Sea landing and had deployed its army in the west.  Taken off guard, a special forces team was hastily assembled and dropped into the northern part of South Ossetia -a place formally part of Georgia but with many rebel groups wanting to break away.  Their mission was to destroy the Roki Tunnel, delaying the Russian army until the Georgians could redeploy.  Historically, they failed to destroy the tunnel and instead destroyed a bridge further south and ambushed the Russian armored column, delaying the Russians about a day, but it wasn't enough.  All were lost, but they destroyed a lot of Russian hardware. In this alternate history scenario, a group of Georgian special forces operators attempt to hold back the Russians as long as possible.