Here's the scenario:
Whoever wants to join in assigned on a Venator class Star Destroyer (See http://starwars.wikia.com/wiki/Venator for info) that comes under attack from Rebel forces. During the battle, the ship's complement of hyperspace capable shuttles and craft are destroyed or wrecked beyond repair. The ship makes a blind jump into hyperspace and are brought out by a gas giant, crashing onto the remote planet of Wüste  IV, a remote Outer Rim system. There the crew and whoever wants to join in must fight off attacks from a force of NR troops from a base on the planet and survive long enough for rescue...