The Last Stand 2
Everything is over, at least that is what you thought when help arrive. However, one of the survivors was bitten and now has turned into an undead. There was a commotion and all you remember is the helicopter crashing. That was a month ago and now you need to survive and get to a safe place. You have 40 days to get there or the entire army would left you forever. Try to survive as long as you can. Defend your barricade. Find other survivors and look for supplies. Get better guns and give some of them to the other survivors.