Barring that total oddball time-travel BS of Fallout 2, which I promptly ignore. In fact, I ignore most of the wackiness of Fallout 2. :|
The time portal in Fallout 2 is a pretty clear easter egg (and one of the many references to Star Trek); I think pretty much everyone treats them as non-canon.
Vault 13 was where the Courier from New Vegas came from, wasn't it? Or did they get the Vault 13 Canteen from someone/somewhere else? I always wondered why that wasn't one of the visit-able vaults in NV.
The Courier's background beyond being a courier and thus having traveled a lot is never really revealed and there's no hint that he's from a Vault at all, let alone Vault 13. As for the canteen/jumpsuit they were a pre-order bonus/DLC weren't they? As such I take them as largely non-canon. Beyond that one can easily think of reasons why they'd have made their way into the hands of someone who travelled widely; Vault 13 was abandoned 40 years prior to New Vegas starting and it's not unreasonable to think that the inhabitants traded away some of their goods in the intervening period.
As for why you don't visit it, Vault 13 is located at Mount Whitney
in California while New Vegas is set in Nevada. The closest location in New Vegas to it is Jacobstown (set in the equivalent of Mount Charleston
). The distance between the two locations is about 230 miles in real world terms; to include it as a location you'd have to massively expand the map in New Vegas.
And new monsters, too. Don't get me wrong, I love me some Deathclaws and Super Mutants (could have used a few more in NV, Fallout 3 had way more plentiful of the latter) but I don't want just more Lake/Mirelurks which are kind of the only other thing that really poses any threat outside of DLC missions. Oh, and I want Behemoths back. Hell, I want different species of Behemoths. Forget Legendary versions, I want a Deathclaw so enormous it eats its own smaller brethren and resorts to smashing rather than clawing despite having claws. The games always lacked boss battles, so these would make for some interesting pseudo-boss battles.
Bethesda haven't exactly been that original when it comes to creating things for Fallout; the Enclave were rehashed as the major enemy (and a major power) in Fallout 3 despite it being pretty bizarre for them to be there, they did much the same with Super Mutants and the Brotherhood of Steel and almost all the mutated creatures in three were things that already existed in previous games. I think much the same will probably happen in 4, although changing to Massachusetts does give access to more creatures to mutate.
I'm also not sure I'd agree that the games lack bosses. Fallout had Garl, Gizmo, Decker, the Deathclaw at the Hub, Lou and the Master. Fallout 2 had the Rat God, Metzger, Frog Morton, the "Mother" Wanamingo, the various family heads in New Reno, Melchoir and Frank Horrigan. Fallout 3 had the aforementioned Behemoths and a host of characters who fit into the "boss" mould. New Vegas had Lanius/General Oliver, the Fiends, the legendary deathclaw/night stalker/cazadore and the Overseer in Vault 34. They may not all be the "OMG it's a huge monster" style bosses that the Behemoths are but I think they still count as boss fights.
Microsoft bringing Mass Effect (and hopefully the other two) to the new console is a great thing, but really after going through all three with well over 100 hours total, I quickly got, impatient with the games. I would try to restart with a new character in the first and just get so upset and want to just skip to three where the cool armor and weapons were. Mass Effect one and two proved to be extremely tedious in their own ways.
It'll be great if they can get them to a playable state; Mass Effect 1 was never a particularly stable performer on Microsoft's console but in the demo they did they were hitting 10 frames a second in places; that's a woeful frame rate for a game played on the original X-Box, let alone an X-Box One.
I quite like going back to the original Mass Effect just due to the differences in combat. Two and Three play far closer to Gears of War with magic powers but the unlimited ammo in the original gave it a different pace and tone; slightly quicker and more fluid with more emphasis on aggressive bursts of action.