The mod I was involved with (for morrowind children of the night 3) fell apart for a very simple and admitedly stupid reason. All of us were busy working on our respected parts, I was an interior builder and 3dmax object maker and we didnt realise only one person on the team knew the whole plot and had the info needed to bring it all together. When he had to leave through no fault of his own we tried to continue but with the main plot having holes in it we couldnt. It was rather disheartening as I had put about a years work into it and built about sixty interiors and nearly 100 objects. The remaining team decided to halt work until oblivion and restsrt, as strangly oblivion has a very similar plot to ours My point being it is very easy for small things like this to ruin great mods. I just hope those mods for doom3 dont make the same mistake as we did. write everything down for other to see. You may only have one or two writers but they can leave too.