So, I'm writing a Fallout story taking place in Michigan. There's a lot of radiation to the east, however, explained to be because of an area mentioned as the 'Detroit Crater'. Designing it got me to thinking about the other games and how the cities included turned out. Salt Lake City was hit by 13 ICBMs, and by the end it was only a bunch of craters and twisted steel girders (not even those would be left really) according to the Survivalist. Apparently, Bakersfield and Los Angeles were hit even harder...and yet they weren't craters in the ground? I understand why this is done, because the game would be boring without these city ruins. It still makes no sense in-universe though, as I seriously doubt Salt Lake City is exactly a high priority target. Especially regarding the fact that this is a war between at least twelve nations who have been building nuclear stockpiles for over a century, this is a blatant error. Vegas was targeted with 77 nuclear weapons, imagine how many were launched at Los Angeles! It could have been hundreds! The weapons used weren't fat man bombs either (Fallout 3 and 4 are very non-canon, they're so awful I'm not even counting them), they were ICBMs. Not just regular ones either, ICBMs that have been refined for 130 years. Think: potentially hundreds of megatons.