The Dynamite Man
Django shoots anything that moves. He is able to target several Bandits at the same time and thus distribute several bullets in a single shot.
Django has always had a thing for dynamite. He deposits some in the wagons, in an unpredictable way.
He is able to detonate several at the same time and thus expel all the Bandits who would have the misfortune to be in the wrong place at the wrong time.
If he manages to kick every Bandit off the train at least once, Django wins the game.