Their profession is soldiering. The Spartan figures by NECA stop the enemy Immortals from breaching the Hot Gates. This is one of the original dioramas I did, just a different set up of the combatants.
Only one series of figures were produced. Though it seemed to sell well in retail, the line never went beyond that. At one point there were reports of a Xerxes figure coming out. It would have been nice to see at least a second series with some other Spartan warriors, King Xerxes and some of his interesting minions.