The closest anyone's ever come to a cutscene level. Pretty astounding, even given the limitations... play it to see what it's all about. (It's cool. Really cool.) The author gives permission to incorporate this into your scenario, and even offers to customize it for you. Amazing what he thinks of...

In the spirit of Jason Harper's "Heartbeat" comes another "cutscene" level that you can add to your scenario. Or not. It's definitely worth watching, though... and the vistas opened by this pair of maps are pretty wide. C'mon... it's only 15K. Check it out!

A very nice example of a technique first showcased "the Battle Cat's World Tour Netpak" - Multiple textures on a single wall. Framing might just be one of the best uses of this technique to come to light so far.

A simple example showing how to exploit a marathon bug to make hallways one way.(That is, you can pass from east to west, but not from west to east.) It's quite effective as a demonstration, but if you choose to use it in a real map, you'll need to polish it up- I was able to (by accident) crush myself in one of the controlling polys. Potentially quite useful in guiding a player to do things in a specific order.