The Orc Mafia
The Orc Mafia is a medium sized criminal organization that operates out of East City. They are the second largest crime group after The Syndicate. Because of this they are constantly in conflict with The Syndicate. Many of these conflicts are resolved by on of there most indomitable hit squads, The 4 Hammers.
Currently they have hatched a convoluted plan to steal a vast quantity of liquor from The Syndicate, dealing them a painful blow. They boarded the train that The syndicate is using to transport the liquor in order to secure the passenger section. Then, farther down the track, reinforcements including the 4 hammers would join them by riding a old stolen locomotive down the parallel track meant for trains heading the other way. Presumably they would then take the private cars belonging to The Syndicate by force but their plan beyond that point has not been revealed.