We show you some pictures that illustrate the different types of the Promethean purposes with its arms that will meet in Halo 4. There will be varying degrees of "Knight", with different skills and weapons, the Watcher that is a sort of sentinels issued by the Knights ' armor, and various types of Crawlers, the Promethean purposes more common on Requiem that assist and protect allies providing extra support. In the mention to Pulse weapons, which creates a Granade field able to slow down vehicles and weaken energy shields.