Hey, so when you join a faction, you reasonably get a pretty cool benefit. Most notably is the Ballistic Weave armor upgrade from the Railroad. Stuff is to die for.
Or kill for, in case of those who screw them over.
It got me thinking, that the other factions, most notably the institute, don't have a similar benefit. The BoS gives you power armor, but if you're playing a Power-armored centric build, anything they give you will already be surpassed by what you already have. That happened to me twice.
So that got me thinking: Everyone who knows their stuff and isn't going for a strict roleplaying scenario always joins the railroad just for ballistic weave. Understandable, but shouldn't there be something similar for the other factions?
For the Insitute, I really feel like they should have crafting stations, and since they don't have to scavenge much for materials, they should be the only ones that have infinite resources at your disposal when crafting as well. I mean, you're a scientist. You make things. That should be something you can do in the Institute. Especially since it gives you the chance to strut your scientific stuff ('not even a scientist', my boot).
The Brotherhood of Steel does need something to do with Power Armor, preferably not something I can already obtain by being a high enough level. Rechargeable fusion cores, maybe?
I have no idea what the minutemen could receive as faction exclusive. No, artillery doesn't count, because I don't see how that's actually usable in a practical situation.