It's a sad truth for all Quiet fans out there and I hate to include spoiler material this early but you need to know this stuff now. I won't go into the exact story details but I will show you exactly how to prevent Quiet from leaving the game so you can continue enjoying her amazing skills and of course pleasurable appearance.
If you don't want to be spoiled then please stop reading now and why are you still here?
For the rest of you, here's the important things you need to know. Having worked through the majority of the game with Quiet you need to be aware that she does eventually leave and there is NO way to keep her besides using this hidden secret.
Follow the instructions below carefully and ensure you've got this in place before you go too far into the story.
When does Quiet leave?
Big Boss carrying Quiet
A chain of events is set in motion once you complete Mission 41. If you're bond level with her is maxed out then over the course of the next three missions she