For instance, we probably won't be finding out too many major campaign secrets during the beta that we didn't already know. The devs at Bungie have only included human-themed maps in the beta as to ensure the secrecy of plot points, actually. "Several of the other maps have different themes that I think are really cool [outside of the beta]," says Bungie's Chris Carney. "I don't really want to talk about them because it would talk about things that are happening in the single-player story." There's a ton more really, really specific stuff (as well as several new screens) over on IGN, if you're into that kind of thing (and let's be honest, if you've made it this far in the post, you probably are).