Nick from HaloDev, with the help of Grenadiac and MonoxideC, has put up a massive update on the progress they've made on their Halo map editor, Prometheus. Prometheus is intended to be an easier-to-use alternative to the Halo Editing Kit, with additional features.

The big news in the update is that it can make brand-new maps that you can play on an Xbox:

Last week we finally created some fruit from our labors. The first Xbox map for Halo 1 that was created directly from tags, which was ported from the Halo CE map "Anxiety" (with permission from Mothergoat and Doublefire). I'm sure some of you are like me, you liked Halo for the PC but the gameplay just wasn't the same compared to the Xbox version. Well now we can create our own maps for Xbox and pretty soon you will be able to as well.

The update has plenty of images and descriptions of Prometheus' features; go check it out.