It looks like the Doom 3: Hell On Earth mod team has called it quits. It seems the leader isn't going out kicking and screaming, but rather is leaving quietly.
From the site:
There are various reasons for (quitting). Many of our members left because they simply didnt have the time anymore needed for the project. Others just lost interest in Doom 3. Let me say that Doom 3 probably has the best mod developing tools available, but also has a really small community, compared to other games, like Half Life 2 or Unreal Tournament 2004. From the Beginnings of this mod, we suffered a constant lack of talent in several fields of development, especially mappers and animators.
So there you have it. I'm rather shocked by this as they seem to have been making some kickass progress on their models. Ah well, another one bites the dust. Looks like we'll have to be keeping our eyes on another doom 3 mod that still carries on.