Firefly Adventures: Brigands and Browncoats – Unification War

As sergeant of the 57th Independent Ground Brigade you’re defending the Serenity Valley. An airborne Alliance Skiff threatens your men and to take it out you’ll need to reach a nearby UA 571-D, and anti-aircraft gun. Unfortunately it lies on the other side of a squad of Alliance soldiers hidden in trenches. No one leaves Serenity, you just learn to live there. Let’s go duck hunting! —description from the publisher