The Arizona mod has to be the best mod that has come out for the game in a long time.
For context, New Vegas’ map is unusually small. I’m the base game, only a third of region displayed is actually playable. What Nova Arizona does is add lore-friendly content to the otherwise unplayable sectors of the game. Nova Arizona is different from other world space mods.
Unlike the frontier or the DLCs, Nova Arizona’s map is seamless with the base game. You can walk from good springs directly to the new map without seeing a single loading screen. The legion also gets some long overdue representation in the game. Unlike in the original, you get to explore captured legion territory.
The mod doesn’t feel like a mod; it feels like a part of the base game.