The Fleet (Gunship XII‪)‬

Welcome to life in orbit. After a plague surges out of control, the infected begin to overrun humanity's cities one by one. Forcing those who survive to take orbit. Commander Dalton James has walked many paths. Most of them in search of whiskey.

As the fleet discovers a brand new race and its horrible secret, however, Dalton may just be the right man for the job. A rugged brown coat to his back and revolver hanging from his side, Dalton James is in no mood for games.
He's always had a distaste for the undead and it just so happens that Dalton is wearing his shit-kicking boots. It's about to be on as high-tech weaponry clashes with the zestful tongue of a man who's had enough.