For those of you who have thought Marathon: Source has been dead for a month, your right, it has been in-active for a while. Fortunately, content is starting to get created again, and hopefully we are planning to have a few new multiplayer maps, models, and textures completed in the next 2-3 months. Route 66 is the first of the multiplayer maps that has been completed. So check out the image section of the mod profile.
We are currently still looking for a good coder (see help wanted for more info). Once we have that, we will hopefully be releasing our first version of Marathon: Source to the public.