/rambling mod thoughts
I haven't played much of MZC, but have seen enough to get thinking about it. I like it because it doesn't just expect the player to pretty much just forget about the spaceship that they just fought their way through.
But I've often wished we could have seen House's grand plan to go to the stars. I can't help but wonder if I would have preferred that beginning to MZC (if, of course, MZC had been built from the ground up with TTW in mind.)
As far as I know, MZC, being a fallout 3 mod with no awareness of NV (I think), it does not offer any explanation (understandably) as to why the ship can't just nuke the New Vegas factions.
I'm picturing something like the "wasteland defense" on Venus and Mars, now. Not real world Venus and Mars, but olden-timey "world of tomorrow" interpretations. ;)
From what I understand, MZC is difficult to convert in the first place, however.