They specify the Strip there, and perhaps some of the surrounding areas of the city by extrapolation. Even still, that's only one town, and the "minimal loss of life" bit refers specifically to the short transitional period after House fell but before Vegas adjusted to the new status quo. The Independent endings for The Kings, The Followers, and Arcade Gannon all clearly indicate that life in the New Vegas area is anything but stable or ideal. I say to you again, with respect, Brotherhood. They're better armed and armored than the Securitrons and they're all hiding in holes in the ground at the mercy of a bunch of NCR doughboys. Numbers matter. House doesn't yet have the industrial ability to manufacture more Securitrons, or he would have. They're more effective as a deterrent force than a standing army. Which is good, because House's entire operation rests on the principle that he can't afford to destabilize the region with prolonged conflict, and the Courier wouldn't profit much by it either. See former point- attrition. The Securitrons were never intended to be an army in the dictionary definition of the word. If House was so confident in their flawless abilities, he wouldn't have considered the Brotherhood and the Boomers such threats. I agree with you in that the Legion shouldn't be a major threat, but the game makes them such and treats them as such, holding that they're strong enough to fight a force with superior armor and ranged weapons to a standstill (and with almost everyone in the Mojave seeming to think the odds at the second battle of Hoover are leaning in their favor). The Power Armor pauldrons incorporated into every suit of Centurion armor is evidence enough that the Legion knows how to deal with technically superior foes, and Caesar seemed confident he could take out Hidden Valley the old-fashioned way if he wanted to be stupid about it. It's amazing what a dedicated fighting force with no regard for their own lives can do. As to waiting for Caesar to die, "et voila" in this case equates to Legion leadership being assumed by a man whose sole ambition is to shed as much blood as he can, and they're not going to disintegrate overnight. I'm not arguing that they're not an effective force, but House was building towards very specific ends, and war wasn't one of them. I mean no offense, but there's just no evidence that he built force of the size that you're talking about here. The Dam is easy to control because it's a chokepoint, and House now has ways of making it useless to anyone who would try to take it. Vegas is a relatively small area to monitor. The securitrons simply aren't enough of a force to operate on the scale you're talking about without overreaching the same way the NCR did, as evidenced in every single ending dealing with the aftermath of establishing an independant Vegas. This is true, and I wouldn't think to argue differently. I just think that unless the next game was set in Vegas, it wouldn't have to make much of a difference. The way I see it (as laid out in my first response), a lot of things wouldn't change, and the things that did change would only be felt at distances further than the Mojave Outpost through the Butterfly Effect. A soldier on another frontier may lament the lack of reinforcements because they're tied up in Nevada and a Brahmin Baron may have to do some shady dealing to maintain his investments, but to the vast majority of non-Nevadan wastelanders it doesn't matter one bit what goes on in the vicinity. There are entire provinces of the NCR where not a single hair on a single ass would even twitch if the Lucky .38 fell over tomorrow and landed on top of Motor Runner, Julie Farkas, and Colonel Hsu. Heh... hadn't even occurred to me. Pulse grenades (thrown or launched) and even EMP-based shotgun ammunition aren't that hard to come by, and the NCR-based Gun Runners are actively manufacturing more every day. Maybe Vegas wouldn't be as hard a target as I thought it would, though it'd still be pure idiocy to siege it unless it was absolutely necessary. That is an open variable, and a huge one. I'm not getting my hopes up for them letting content from a spinoff's DLC have that kind of an effect on the franchise world, but I'd love to be wrong. In-game, though, you'd really only nuke NCR if your Courier was either Legion or an asshole, and if your were backing Legion than the Legion probably won at the dam anyway, making the whole point moot.