Have a question. If I wanted to just jump into the Ground Zeroes mission and take my time searching for the collectible stuff like the tapes, xof patches and pows I missed would I still need to rescue Chico and Paz in the end to get it all to count or could I just fly off when I'm done? And I'm assuming all the POWs will still transfer over to Phantom Pain even if I rescue them in different playthroughs?
I'm fairly certain any collectibles you pick up will be counted so long as you reach a checkpoint after finding them.