So I'm pretty sure I'm reaching the point in Chapter 2 where Quiet is going to no longer be available as a buddy.

I don't know much about what is coming up story wise and would rather keep it that way until I get there.

My question is at which Mission No. should I make a separate save file on a USB so I can follow through with trophies and then load up my old save file later and get Quiet back.

After over a 100 hours play I don't think I'm ready to let my old sniping buddy go just yet........... ;)

I saw someone mention on another forum post that you can edit a file so that you can keep using her after she dies. Google it

@travisrex: I'm on PS4 not PC so I don't think I've got that option. :(

You don't have to. Just at keep a butterfly as an emblem and you will never get the mission. I'm serious, sadly lol