"Earlier in the week it occured to me that there was a precursor to de_sienna that I had made, basically to experiment with a few things. The aim was to create a tight-yet-open dark-yet-bright map with action-yet-sneakiness designed for LAN play. The aim was not a `real' map as such, but something that would be a good blast for a 30-odd minutes."
You can find more information regarding this map (including the .rmf) by visiting Dave's blog











