Yes actually, Caesar wants to reset the entire Mojave, if not the United States because:
>The New California Republic is a repeat of the Corrupt United States Government from Pre-War Time
>Mr. House represents an unstable dictatorship that in Caesar's eyes, is just there to promote more degeneracy such as chems (drugs), prostitution, despondency and gambling
>The Brotherhood of Steel, while noble in their quests, are only looking out of themselves, and want to continue to use the same technology that lead to the destruction of the United States, if not the world
>Yes Man, yeah put your trust in technology again, do it
We don't see what he did in Arizona, but it's becoming Rome. Technology is being reset, moral standards are being reset (Veronica is a degenerate, Caesar's Legion isn't gay, a myth/propaganda by the NCR), and the Old World can finally be remade.
Currently in New Vegas in Hardcore Mode/Very Hard, listening to every conversation. I'm about to go into Dead Money and actually "listen" to Father Elijah. While he is insane, he does show good points about wiping out the Mojave to start over.
Fallout 4 I think was damaging, it wanted to portray Synths as humans, almost how the Left wants to portray A.I as being "human". We're in a deadly game of fantasy being mixed with real life right now.
However this playthrough? Caesar's Legion, save Caesar, pray he delegates to a Congress or a leader other Lanius, and so on.
Oh yeah Hardcore/Very Hard? Doing an Explosives/Unarmed Build. Annabelle and Recompense of the Fallen are my weapons, fml when I get into DM though, the cloud is going to eat my alive.