if it would accur now that zombies rise from the dead i would be with my unit in the army, so the gun issue wouldent be a problem and all my "real" friends in the unit would have wepons aswell.
I would however ignored the commands orders and get the hell away and fortify a house, store what so ever, and try to find survivors and after closly checked them so they aren´t infected let em in. Try to starve the zombies out. I mean, zombies cant be running around forever, they need after all even if they are dead, MEAT!
Actually, Zombies don't need to eat to live, the just have an urge to attack/eat in order to spread the disease... The Zombie infection also slows decomposition which is the only "natural" way for them to die... Additionally, environment plays a role as well and some Zombies can "live" indefinately in certain environments..