Vegas has felt the effects of the war much less than most US cities and is one of the few surviving centers of civilization where you can live at a slightly higher level than in most areas of the destroyed continent.
For years, crowds have been pulling into the city in search of entertainment and the appearance of normal life. Over time, Vegas has also become a Mecca for all types of dark star people, who have narrowed down the possibility of getting rich here. Today everyone knows that in Vegas you can get everything you want if you pay properly. The strength of Vegas doesn't lie in a strong army or heavy weapons, but in its wealth, its ability to program machines and manipulate people.
The advantage of Vegas is the wide range of possibilities to cross the enemy's plans and use his own forces against him - with the help of the HQ and Agitators. An additional advantage is the significant mobility of the army.
The disadvantage is the small number and low initiative of own soldiers.