About faction destruction: Due to the way factions are positioned, won't it end with each faction destroying a neutral faction before reaching their deadly enemy? So Family/Lawyers will always have to destroy Brahmin Boys/V-Tech first and vice-versa.
I do like the idea of faction destruction through. Makes me think that something like that would be a worthy PvP event by itself - "Siege of Family Hotel by Vault-Technologists!" Imagine a whole weekend with Vtecs making a harsh siege of Family Hotel with a army of players and cannonfodder while Family members ponder between trying to raid the siegers or awaiting for other factions to attempt a rescue. Imagine a faction being overwhelmed and killed because they ran outta ammo after days and days of dire siege.
Also, is the 4 faction system final or is there a plan for extra factions? 6 or 8 would be very interesting...