In Metal Gear Solid 5: The Phantom Pain, I know the ending mission is 46. How do you unlock the mission so you can play it and watch the ending?
Edit 1:
I got that ending but it still will not unlock for me. I got the cassette tape at the end and all.
Edit 2:
Here are the screenshots (MAJOR SPOILERS): steamcommunity.com/sharedfiles/filedetails/?id=519951201 and steamcommunity.com/sharedfiles/filedetails/?id=519951450 (Spoiler tags enabled for each)
Best Answer
According to this link, you are needing to have:
Complete all of the main story missions (excluding the repeat missions) before and after this mission.
You must also complete all of the important Side Ops indicated in yellow.
Listen to all of the yellow cassette tapes
You will need a fully upgraded Mother Base and all of its platforms.
If I remember correctly, there are about 49 total missions but Mission 46 marks the end of the story, Truth.
Due to comments, I will probably say a nearly fully upgraded Mother Base instead of a fully upgraded one. Maybe this link could help you unlock mission 46: http://www.gamefaqs.com/boards/718564-metal-gear-solid-v-the-phantom-pain/72466817
The text in it: