Quote Originally Posted by Zaladane View Post
Oh and is there even an upside to giving Virgil the serum at this point?
Think I only ever bothered doing that once out of all the times I've played FO4 tbh Don't remember anything special

The game will let you know if you're going to make a certain faction your enemy, but I usually keep my faction runs pretty clean so I just use a save from when you enter the institute and then meet the division heads (that's when you get full teleport access). You can go beyond that though.