7 levels, ranging from huge to tiny. Some take inspiration from Bungie levels (you'll know by the name), some are entirely original. All are well-constructed, and provide nicely for heavy carnage.
A multilevel, familiar-feeling map... but you haven't seen this before, at least not in this form. Lots of tight spaces, good flow... but also easy to get trapped, easy to find yourself in a corner.
Wow. One netpak, 77 levels. Yep, that's right, 77. Mostly pretty good ones, even... some novelty stuff, and at least one that really needs Aleph One (the last one)...