How many riot gear units do you think would be feasible? Given we have the ones of the former LAPD SWAT teams and those from the Desert Rangers. A sorta small-medium faction which fought Caesar's Legion in a losing war before being absorbed into the NCR.
Waffle says bring up that the Texan faction definitely does not have the population it does with the territory it has as a mod. Ask him yourself if you don't believe me.