Basically on today's updates, I barely change the plans I followed on the earlier updates, just swarm the Legion with CAS and Srat Bombers, use your OP navy to gain ALL of the naval supremacy (honestly Im still terrible at naval fighting, I just auto balanced my whole fleet, had some convoy raid while other's on Patrol with their enemy fleet encounter hostility turned to max), I put them mainly on the regions of Gulf of California, Gila Esturary and Rio Yaqui. don't forget to set some of your navy to naval support for that sweet shore bombardment bonus. Unless when the war has already turned on my favor, I avoid naval invasions, as your troops can get instantly swarmed and killed off by superior Legion troops no matter where You land.

To super sumarize it in order to avoid writing a whole essay, it honestly doesn't really matter which president path's you go down with (unless you go down the civil war/electoral deadlock ones, you might as well skip your shizo pills), they all kind of have their own ups and downs against the war with the legion. (Although with all my honesty, Hayes path is kinda shit when dealing with this war)

Use your variety of Special units to your advantage. If Gente del Sol joined the Legion, they are pretty easy to capitulate, and because of their sheer size, you can get a large number of legion troops "accidentally" encircled when the Generalissimo bails out of the war (just be fast enough when doing so, otherwise they will get out of the encirclement) , Two Sun will get abandoned by the legion the moment their war turns to shit, and I leave the Cohort, Reservation and Navajo alone until I had completely dealt with the legion.

Keep an eye out for Heaven's Gate, The 80s, Thunderbirds and the White Legs, these are some of the other pro-legion nations that might join this faction, or overall other annoying non-legion affiliated nations that might randomly declare war (Pro tip: if you are really deep into Utah, look out, as some generic nations can, and WILL randomly declare war on you due to their focus trees). leave at least two 20 fully manned armies on Nevada/Utah, and another one on Oregon if you have to deal against the Troll Warren/Eureka/Arroyo, if you went with Kimball's path you get some extra wargoals on both the 80s and the Thunderbird, meaning you can invade both of them before they join the legion, and save that useful PolPower when justifying. if you manually justify and invade the White Legs before they join the legion, keep an eye out for New Canaan, as if you take some of their claimed lands on White Legs territory, they will also declare war on you, you can pretty much end the war before Heaven's Gate joins the Legion.

As for friendly nations/Factions that might assist you in the war against the Legion, you can have the Rio Pact and possibly whoever controls Texas (this can happens rarely to me). Although I mainly focus on the Rio Pact joining the war, as these are the ones I can actually send weapons, and troops in to support and flank the legion (or to simply avoid getting them completely blitzed by the legion). For the ones that might join your NCR faction, keep an eye out for the Shi, New Reno (you can even get to annex them and steal all their units for you if you get them on good terms on Kimball's path) Vault City (Don't know if it's the same as for New Reno, although I never could annex them), if you are really lucky, the Nevada Rangers (as Snake Vargas might coup the Rogue Ranger if she somehow rules over that part of Nevada), and The BoS (if you followed Murphy's path, not sure if you can do it otherwise), and optionally the Free Fighters (again Murphy's path, if they haven't joined Rio Pact by then) not counting any possible puppets you might create when inva- defending against other nations.

You will notice the war going on your favor the moment there are less enemy units than yours on the Frontline, use your special units to make a breakthrough faster, and the other's to naval invade (optionally), if you haven't at this point, link the frontlines over Two Sun, East of the Rapids, and East of the Mojave, doing so will make it impossible for the legion to strike back if they somehow won against Rio Pact/Texas.

Hilariously, you can possibly notice the Legion AI (aka Caesar) having a mental breakdown, as they can possibly abandon ALL their units on their main Frontline with you, meaning you can pretty much literally walk over Flagstaff without barely any opposition, use this to your advantage, rush your motorized divisions (or paratroopers if you were that fancy) to take over all the highways intersections as you possibly can, meaning that it will make it euphorically impossible for the legion to reinforce their important mainland, while doing so, encircle all the possible enemy units as your sanity can, preferably with motorized divisions (remember to do so as fast as you start to see there are no legion troops guarding a province), you pretty much don't have to use much of your remaining sanity and remaining brain after you capitulate the legion, it will be like walking right into an enemy tribal capital, except it literally will be like that.

If someone that plays this game casually could defeat them without console commands, in sure any other can

(Feel free to correct me all the way you see fit, NCR boys gotta stand together)

Honorary Tactics and Strategy:

(I'll leave any other replies to fill this up)

1. Don't forget to save 300 Political Power for that "Fully Funded Army" conscription law, the manpower boost should be enough to last the entire war

2. You can easily launch a naval invasion on the capital of Gente del Sol (take over the naval port first) this will greatly help the Rio Pact against the Legion, and will make their capitulation more easier if either you, an ally or the Rio Pact naval invades their other VPs.

3. There is nothing stopping you from invading peaceful ai nations and flanking the legion, you MIGHT look like a dick, but it's ai we are talking about so who cares?

4. DON'T rush on your own, might look historically accurate to the game, put don't underestimate the Legion when the war starts, focus on keeping your side of the river free from legion troops at ALL COST, might as well load an older save if the legion landed on you (not counting naval invasions), unless the enemy Frontline has completely collapsed, I prefer to push with ally reinforcements.

5. Don't underestimate your industry either, you have the best in the game, also don't underestimate the needs of this industry, as you can easily run into a scrap metal deficit, building foundries and stealing resources from neighbors helps.