I have it at my site.

Updates all maps all Textures and comes with a special map called town. Town is just a spiced up version of E1L3. I just made capibilities for jumping on roofs, cross-bows on the roofs, new building, fortress walls.
The updates for the maps are for making them DEATHMATCH and COOP play possible!
Could somone make a installer update/mod.
Like it auto puts the files in.