So, as far as I can see there are two possible canon endings in Fallout 2 for Vault City. The first is where the NCR invades, and the other is where Lynette marries Westin and VC becomes an independent city-state. Now, personally whilst I think there's a fair argument that the NCR territory in NV is basically just meant to be composed of the worldmaps from 1&2 and as such Vault City came under the NCR banner, I tend to lean more towards the independent ending. My reasoning being that we never see Vault City referenced as an NCR territory or state in New Vegas (correct me if I'm wrong) and that the Fallout 2 ending says that the independence legislation sets the boundaries for NCR expansion north, which I actually think leads into New Vegas pretty well because that just leaves the NCR to expand eastward and into the Mojave. Still, what do you guys think?