All Tactics needs is a bit of dusting and re-arranging here and there, and it can fit easily within Fallout canon. Lemme remember the issues:
- Canon story issues like "BOS came from Military Vault", "The Master messed with Deathclaws"*, Vault 0 and its not fitting within the Vault experiment, they can easily be dealt with.
- The Aesthetics are not retro enough, not gonna lie.
- All the real-world guns need to go and get name/appearance changes. Its bizarre that a game in the post-apoc future is littered with WWI, WWII and Cold War era weaponry, most of which should't even have existed post-divergence, anyway. I would keep only a few - the M2 Browning, the AK47, the Pancor Jackhammer**, maybe the M1 Garand. Anything else, give it slight art-lifts and a new name.
- Change the Hummer and APC to more Fallout aesthetics and names as well.
- The whole storyline works in the Fallout world. All the groups and factions (Midwestern BOS, Beastlords, Reavers, Gammorin's Army) make sense and work in the Fallout universe.
*this is actually their original origin, but it got changed later on. I think the Fallout walkthrough (written by one of the designers) references it, which is how it got in FOT.
**Because its too damn cool not to and FO universe seems like the universe where the Pancor Jackhammer would get the green light. Desert Eagle is a 70s gun and it still exists despite the divergence.
BoS turning onto Feudal society of powered plate donning Neo Conquistadors leading the army of conscripted peasants
Yeah that was done pretty well. In a way, I feel it shows
why the Brotherhood has their strict code and what happens when they start shedding it, first ideologically and then out of desperation during the war. Its pretty clear at the end of the game that even as the Brotherhood is winning the war, its becoming more and more of a brutal dictatorship. Dudes had Internment Camps and Inquisitors by the end. They won a war and saved humanity, but were clearly on the way to become techno-fascists.