Also the security guard appears to be wearing something similar to the Enclave officer uniform http://fallout.wikia.com/wiki/Enclave_officer_uniform which would I suppose make him a US Army officer rather than a sign of Enclave involvement.

Its the only sign of possible Enclave involvement along with an eye bot in the trailer.

The official "world-ending" time in Fallout is 9:47 AM, October 27th, 2077, on a Saturday. Though obviously that time shifts depending on geographic location and order of bombing targets.From the radio announcer in the trailer and the panic in people throwing everything into their cars and running down the street, we can infer that nukes have started striking other locations, and the population knows Armageddon is racing their way.

Since China is doing the nuking, it is likely that targets in the western part of the continent, like Alaska and the West Coast are among the first to be hit. Depending on when the first warning was received that missiles were incoming - either if they were detected at launch, or if the first warning was the initial target impacts - then the people in Boston had 15-30 minutes of warning that nukes were coming. This assumes that ICBMs in Fallout's universe travel the same speed as ours in the real world. (ICBMs average 3 miles a second. Slightly slower at first, and slightly faster before impact.)

I would assume, that knowing this, the government and Vault-Tec would already have the Vaults stocked, as it would be impossible to get supplies for 1000 people moved in in less than half an hour.

One interesting thought I had: From the leaked documents, it appears our protagonist is an important figure and is somehow involved in the military, and is giving briefings. What if our protagonist, the player, is the Overseer for Vault 111? Nothing really to back that up, but I think it would be a great change-up from the usual "You come from a Vault" opening.

That would explain the presence of US army/national guard rather than the Vault security guards were are used to seeing, of course a guy in power armour carrying a minigun is more of a menace than a security guard to the panicked civilians trying to get into a vault, but why aren't there US army/national guard in combat armour being used instead.

Maybe Vault 111 is a joint military/vault tech Vault (are military vaults/bunkers numbered ?), maybe the cyrogenics is already being tested there when the war starts and its use is forced on the Protagonist due to extreme circumstances rather than a Vault tech experiment.

Just because there is strong evidence that the trailer is showing in-game assets, does NOT mean the trailer is showing actual game play. By the same token, it doesn't mean it isn't either.

I am NOT saying that your assumptions aren't correct, I am just saying that the belief it must be true because it is in the trailer is faulty.

It is a reveal trailer. BGS could have just as easily shown a dodge ball game between super mutants and deathclaws. The difficulty of doing that wouldn't be as complex as people seem to think it is. Hell, fans have been doing things like that. Just go to youtube and search "Liberty Prime vs" and you will be treated to videos (some good, some bad) of Liberty Prime fighting super mutants, death claws, Caesar's Legion and other things. Did the fans that made those videos cheat? Hell yes, they did, but that isn't the point. The point is that it was done. And if fans can do things like that, BGS who has access to better tools, certainly could also.

Again, I am NOT saying you are wrong. Your theory is mostly consistent with what we see in the trailer and may reflect or be close to what we will see in game. But there are other possibilities also and I am going to reserve judgement until I get more information.

There is quite possibly going to be some strife between the player and the military or government. I can't imagine Bethesda having the player be 100% ra-ra America going into the Vault. It's a little too on the nose. He likely disagrees with the course of the war, and there might be some conspiracy that gets him put on ice in the Vault. Maybe he didn't find out what his "secret assignment" was as an Overseer until he got to the Vault, and disagrees with going through with it. Maybe they tell him they are only going to put him in stasis till he recovers from his radiation poisoning, but they never intend him to wake up - hence the 200 years passage of time.

It's fun to speculate. I imagine that SOMETHING happens in the pre-war tutorial or escaping cryostasis in the Vault that makes traveling to the Institute a necessity and mission goal.

For all the people saying the people outside the vault would be dead, according to the best "guessed" positions of the town and where the nuke went off, they would actually be alive, though likely hurt.

Nukes in Fallout's universe had a yield of 200-750kilotons, but traded larger blasts for more radiation output.

Using the nuke map tool, placing the vault in Waterton, and the nuke in Brighton(the assumed places of the vault and where the nuke hit), they would be hit by the high pressure blast from the nuke, but would be outside the "everything get vaporized, or "everything catches fire" zones.

They would be hit by a large force of wind from the explosion, but it wouldn't be a guaranteed fatality.

And the nuke map tool uses real world nukes, not Fallout's, so if we account for the weakened blast, they have a slightly grater chance of being alive.

I still think that the uniform is vault security armor. If you look at the wiki entry for http://fallout.wikia.com/wiki/Vault_101_security_armor, it looks very close. Could anyone get a hi-res close up from the trailer to confirm this? Also, the very same armor is being worn by the two guards in the area behind the vault gates. And if this is vault armor, were they also destined to reside in the vault.

Well there is the old Fallout rule that nukes = ghouls, so maybe cryogenics somehow prevents the FEV from turning the Protagonist into a ghoul. But once he's on ice, a rival stages a coup removing him/her from power.

Honestly, I think you guys are really reading into the teaser trailer too much. For all we know, the pre-war scenes have absolutely nothing to do with the game's story.

I dont agree, he seems to be wearing a enclave style cap (green instead of black) and he lacks the bulletproof vest and riot helmet from the security armour. Also he is carrying a Lasrifle and vault tech security hasn't up to now be that well equipped.

I'd have to see a enhanced picture to be sure of course, because the whole pausing thing isn't getting me a very good view.

Well, FEV wouldn't have been around on the East Coast at the time of the initial nuking of the world. It was released from labs out West when the bombs fell. So there would be no FEV present for weeks or months on the East Coast.

I agree that it is likely Enclave style. The Enclave uniforms are what U.S. military uniforms looked like in 2077 in the Fallout universe. So it speaks to a military presence in addition to the T-45d power armor.

Or perhaps he discovers that the war has been triggered intentionally by the Institute, who's influence has been dangerously underestimated until now. This would give him a huge and very personal incentive to investigate once he awakens post-war, as well as showing us just what the Institute are really capable of. They have altered the fate of an entire planet, but how did they manage to achieve such a task? And for what purpose? Whatever their objective, their actions have taken away everything that our protagonist ever knew or cared about. And he is now determined to find out the truth.

I don't know. I don't think Fallout should ever examine the exact cause of the end of the world. I like the fact that it is kept nebulous as to whether the Chinese or Americans launched first. It also makes it a more poignant commentary on war, than if the nukes were all some nefarious master plan. I think that would cheapen it.

I thought that the lore was that the FEV or earlier versions had already escaped containment in the pre-war world and it was the radiation that then combined with it to cause all the mutations......I'm sure I read that somewhere in the expanded Lore from the Fallout Bible.

No, Chris Avellone directly said in the latter bibles that the mutated animals, and ghouls, were radiation only.

Remember, FEV makes everything it mutates sterile, and none of the mutant animals are sterile.

But GHOULS are sterile. So FEV confirmed for ghouls? Or is it because all the bits and bobs rot off?

I wonder where I heard it from them, not that it ever mattered much anyway to my enjoyment of the games.

Anyway leaving thoughts aside of bits rotting off ghouls, thanks for the image by the way.

It seems from the trailer that a man in army greens and helmet is the one (with a pair of T-45d PA guys) checking people of to let them into the Vault perimeter, with the scientist, another PA guy and Army Officer/Security Guard checking them again at the shaft entrance.

Ghouls are sterile because ghoul lore is [censored].

When making Fallout 1, some devs, such as Tim Cain, made them to be radiation based(as that was how 1950's America saw radiation as working), others, such as Chris Taylor, made them radiation + FEV based.

When asked, Chris Avellone was originally on Chris Taylor's side, but later changed his mind to Tim Cain's after someone pointed how making FEV be the cause of everything, such as ghouls and mutant monsters, makes no sense as FEV sterilizes everything. It also doesn't make much sense that FEV somehow slipped into the Bakersfield vault and nowhere else.

In short, ghouls are radiation based because that's what most of the devs agree on, its what Chris A said in the later Fallout Bibles, and its what Bethesda used in Fallout 3. However, ghouls are still sterile because some of the devs originally intended them to be FEV based, which would make them sterile, but now that they aren't FEV based, it would be kinda hard to go back and retcon that without it being a major problem.

Although, Van Bruen was going to introduce born ghouls, which would have changed that, and Fallout 3 makes reference to Saint Monica, a human born to ghoul parents, but that story is likely false as its very obviously "religious" in nature.

Well however this side of things plays out, the outbreak of war has most certainly facilitated the Institute to achieve their more sinister objectives. Maybe our protagonist has some vital pre-war information that would play a key role in bringing about their demise.

Then there are the Enclave intelligent Deathclaws who were mutated by FEV and were not sterile......I'm not going to argue Lore with you though, since your right it started out contradictory and they have sort of sorted at this point, I guess I was just remembering one of the earlier versions.

To be fair, the talking deathclaws are often considered one of the worst things EVER in Fallout history, even Chris A wanted them dead.

Yep. That makes sense. The Fallout Bible alternately makes some things more clear, and some things more confusing.

I do wonder why we don't see any ghoul children, as in, children who were exposed to radiation and turned into ghouls. Ghoulification seems to halt the aging process, and a disgruntled NPC trapped in the rotten body of a child for 200 years would be an interesting character.

If this ended up in-game, maybe we could adopt them as we can in Skyrim!

Have you ever heard the expression, "Figures don't lie, but liars can figure"?

I am not calling you a liar, but your figures, while true, do NOT represent the situation. The trailer shows people out it the open and within the radius that the ionizing radiation from the blast would be lethal. They are also within the radius of where the thermal effects would be lethal. They are also within the radius where the shock wave from the blast would be lethal. The way you are using those AVERAGES, makes is sound like you believe that the family could have been inside the fireball and survived.