Cleon
Legend
I'm getting it from the SRD:
There's no exception listed. I think, since Draconomicon was being written during the cross-over from 3.0 to 3.5, they just missed this. There are plenty of errors in D&D books.
If the template doesn't specify whether that you add the augmented subtype I'd be reluctant to assume Dracoliches have it. I checked a few 3E Dracoliches (e.g. Aurgloroasa in Dragon #344, Dragotha in Dungeon #134) and none of them had "augmented dragon" in their stats.
Then again, I very rarely see the augmented subtype in monster writeups, even creatures where the template specifies they should have it (like SRD Vampires) often forget to include it in their stats.
Anyhow, I don't think it's worth fussing about so long as we're clear whether they can have Enslaved Undead Dragons or not.
I'm willing to leave out anything about PCs. Anyway, how about this?
Org: Solitary, hunt (1-4 plus 2d10 skeletal warriors), or X (1-4 plus 4d10 skeleton warriors and 1 dracolich)
as well as a description of your enslaved dracoliches in the background text.
That seems rather a lot of skeleton warriors. They are pretty potent undead in their own right, remember - 10th-15th level "undead lords" in the 1E Fiend Folio, 10th+ level fighters in the Enworld conversion.
Hmm...
The Human, Dragon Slayer writeup in MCA2 has a #Appearing of 2-12. How about we use that total?
Organisation: Solitary, hunt (2-4), company (1-4 plus 1-8 skeletal warriors), or flight (1-4 plus 1 dracolich)
If they've got a dracolich, maybe that's to make them an airborne unit?
They might use other undead dragons if a dracolich is unavailable, like the young adult red dragon skeleton or zombie wyvern in the SRD.
Organisation: Solitary, hunt (2-4), company (1-4 plus 1-8 skeletal warriors), flight (1-4 plus 1 dracolich) or squadron (2-4 plus 1 dracolich and 2-12 skeletal warriors and 1-6 young adult red dragon skeletons or zombie wyverns)