Mark's been making Marathon maps since he could. (4+ years now.) He's collected up his best netmaps, retextured or retooled maps originally built for older Marathons, and added a few new designs. The package contains 18 maps, a few of which are variations on a theme. Carnage is quite high in single-player mode, due to the heavy concentration of aliens... most or all of which disappear in multiplayer mode. If you're looking for a netpack that your gaming group can load up and play for a while on your lunchbreaks, look no further.