The Flood? Who are those guys? With Halo 4, it's the Prometheans. What's the difference between a Crawler and a Watcher? What's the best way to take down a Promethean Knight? And what exactly is that darn Scattershot weapon that keeps on one shotting (yeah, I know that's not a real word) Master Chief at close range? It's all here in the G4's Halo 4 Promethean Guide. Check it out!