he is the only hope left most of his people are dead and even though resources are thin he is able to salvage materials needed to create the old omega force armor though crudely done, it can still be able to protect him from the horrors that want to kill him.
All he can do is stand guard of his old town with his gun which now is his companion because if he did not have it he would be dead, because of the endless waves of monsters running at him ranging from zombies to creepers.
He is the only hope for mankind.