The BoS's motivation for attacking The Institute comes from them detecting the explosion from the death ray the LW fired at Toronto in MZ.

The BoS, thinking only The Institute could possess such a death ray, attacks to try to prevent them from using it on D.C., or anywhere else in the wasteland.

The LW OFC could not be reached for comment, having wandered off into the wasteland for no real reason.

Hmm did it unfold anything?

Like other fallout games there are two plots to the main quest, the personal, red herring plot, then the grander "real" plot

Herring plot, find out what happened to your spouse and kid, main plot gonna be about androids vs institute and the question, can a machine live? And if so, does it have the right to be free?

Turns out you're in hell because you played with a goofy golden box that you thought was a rubik's cube. You end up being chased by this mad doctor demon thing who has somehow taken over the realm. Luckily you remind the previous denizens of hell that they were once human and they sacrifice themselves to aid in your escape. ..You think everything is fine and that you've finally beat the game but then a mattress eats a guy and you learn there's going to be another game..

Eventually you will either have to join the institute and fight against the brotherhood or vise-versa. The Brotherhood wants to gain access to the institute and take all their technological advancements or any other tech that is advanced because duh, they are the brotherhood of steel and are into that [censored]. Meanwhile the institute knows the brotherhood is a threat and want you to help remove them from the region, being one of the last threats and major powers that prevents them from controlling the Boston area. or you just [censored] them both up and let moira brown take charge, who arrives to the boston area just as you defeat both, as she heard about a new hero of the wastes and is just a damn [censored] like that. you kill her too. happy fallout

The BoS and the Institute are going to fisticuffs over a crashed alien saucer.

The main BoS and institute guy duking it out bare chested like solid and liquid snake on top of Rex.

''It's not over yet!''

When I get to the future that junk better still be in that crib too.

Baseless predictions....

Institute trying to control its technology and maintain servitude of synths

vs.

Brotherhood of Steel trying to take Institute technology and eliminate synths

vs.

the Railroad trying to liberate synths and remove tech from solely Institute control

When we connect with the Commonwealth Minutemen we will find that it is being run by Col. Grant and his wife, Mira. They will inform us that the Institute is controlled by a bunch of evil machines that use human body parts as spare parts. You will be given the mission to blow the Institute up with a nuke. You will then fight you way into the Institute through their Synth army saying, "We don't take no [censored] from no machines."

I don't think the main conflict will be all about synths, although they'll definitely be involved. I bet their independence will just be a bargaining chip you can use to get them on your side of the power play.

CRAM IS MADE OF PEOPLE!

and this began my love of bethesda games, but I hate that creepypasta

You are The One, Leelu

It's much better than No Two...

My guess is that the story will surround synthetics, they'll at least act as the catalyst. The big twist and/or main goal, will be finding your child, who now probably is a synth(like yourself probably). Couldn't be more unoriginal - I know - but I really don¨t think it will be more original than that.

I just want to find my spouse, make sweet post apocalyptic love, then hit things in the face with a sledgehammer for 300 hours.

And the baseless speculation fun continues!

Synth Focused Alternative.

The BOS arrived in the area recently and have designated the Institute as a threat to the region that’s also sitting on a stockpile of dangerously advanced tech and as such they want to take over or eliminate the Institute.

The Institute went a little nuts when people in power armor suddenly showed up wanting them to give up their toys, so they started creating large numbers of synths, both non-human looking and human looking ones, to defend themselves.

The BOS finds themselves fighting a new and hard to kill enemy, some of whom are decent at infiltration, and begins relying on the tribals for some basic resources like food, water, etc as they begin a more protracted battle than anticipated.

The Institute has always prided themselves on admitting only the best and brightest into their ranks, keeping them “pure”, and tends to not give a darn about the welfare of everyone else in the wasteland. The Institute sees the BOS actually giving a darn about the welfare of the tribals and partially relying on them for resources, and begins sending out synths to cause havoc with the commonwealth populace to force the BOS to waste time and resources defending the commonwealth instead of focusing on the Institute.

Among the bands of Synths that have been wandering around the commonwealth, a small percentage have gained sentience / malfunctioned into thinking they gained sentience (depending on your point of view) and begin attempting to escape from the control of the Institute.

Bands of commonwealth tribals have interacted with these escaping synths and have formed an underground railroad in an attempt to assist them in gaining their freedom.

Some synths wish to be left alone, however others have formed into two main groups. Group 1 wishes to take down the Institute and free their brothers and sisters from slavery and then live somewhat peacefully with the rest of the commonwealth. Group 2 has been hurt so much by their enslavement that they see all non-synths as threats and wish to not only take down the Institute but also eliminate the threat of humanity and create a “pure” synth-only world.

The BOS doesn’t know what to make of possibly sentient synths, but as almost all the synths they meet appear to shoot their members on sight, they’re inclined to shoot first and ask questions later.

The Institute sees the growing synth resistance as a significant problem and changes their synth designs to a more basic and less likely to malfunction format. They also send out synths to hunt down the malfunctioning synths.

Enter the player…

During the main quest, you can side with the Brotherhood, the Institute, and/or Group 1 of the Synths (the reasonably peaceful ones). You can convince the BOS that all the so-called sentient synths are simply malfunctioning and need to be destroyed due to them being too much of a risk, or that they really have gained sentience and the peaceful ones should be allied with. Vice-versa you can convince the Group 1 Synths that the BOS don’t represent a threat or will want to eliminate them and need to be taken out.

Main ending conditions:

1. Institute Victory, BOS Defeat, Group 1 Synths Defeat, Group 2 Synths Defeat
2. Institute Defeat, BOS Victory, Group 1 Synths Defeat, Group 2 Synths Defeat
3. Institute Defeat, BOS Victory, Group 1 Synths Victory, Group 2 Synths Defeat
4. Institute Defeat, BOS Defeat, Group 1 Synths Victory, Group 2 Synths Defeat

You bring up a good point, and this could be pure coincidence but in all the footage I've seen thus far that has BoS in it shows us either shooting them or them shooting us. I'm beginning to wonder what's up with that. Either way it gives me hope that we won't be forced into joining/ siding with them in order to complete the MQ.
It would be nice if they pulled so.etching like they did in New Vegas and had a few different roads you could go down with them. Like siding with them completely, or believing in some things they had to say but trying to improve upon old ideas... or just blowing them all up. Lol, just sitting at the top of the main stair case while u keep throwing c4 to the bottom... killing them one by one while they all eventually try to come after u. Boy oh boy was that. A sweet pay day, but damn it took so long to haul all that PA back and forth to sell it.