Gallowwalkers

Gallowwalkers is a movie starring Wesley Snipes, Kevin HoWarth, and Riley Smith. A cursed gunman (Snipes) whose victims come back from the dead recruits a young Warrior to help in the fight against a gang of zombies.
When a nun broke her covenant with God to save the life of her unborn son, Aman, he was cursed for life. As an adult, Aman has killed those who have crossed him. But his curse brings his victims back to life and they pursue him for revenge, so Aman enlists a young gunman to fight by his side against his undead victims.