Due to the convoluted canon of the Metal Gear Solid games, series creator Hideo Kojima admitted that the story in Metal Gear Solid V became so confusing that the last half of the game contradicts the first half.In an interview with Famitsu Weekly, Kojima admitted that he took a week-long break while writing Metal Gear Solid V: The Phantom Pain and had completely forgotten what happened in the first half of the story when writing the last half.
“When I wrote the story, I had forgotten most of the details in the first half so when I put the two halves together, I realized that they did not completely line up,” admitted Kojima, “I had forgotten the original intentions of characters like Ocelot and Kaz so by the second half of the story, their actions made no sense. I also completely forgot about Huey and never wrote a conclusion to his story. Combining these two parts was like trying to fit two jigsaw pieces that just don’t go together.”
“When I tried to fix the first half of the story to better match the second, I ended up creating further inconsistencies with Metal Gear Solid 3, Portable Ops, and Peace Walker,” explained Kojima, “Then I tried rewriting the second half of the story to better match the first half and it ended up conflicting with established details in Metal Gear Solid 2, Metal Gear Solid 4, and Metal Gear Rising. I was also informed that the story seemed to completely ignore the existence of the original Metal Gear Solid game.”
When he was asked on how he reconciled all these plot points, Kojima responded, “I had to make a decision on how I wanted to do the least amount of damage to the Metal Gear storyline so I decided to leave both halves of The Phantom Pain the way they are. So as of right now, they are completely inconsistent with each other. Either way, I am sure I can fix all of the mistakes in the sequel or the next one although I think I might be running out of time until Metal Gear happens. Maybe I will just write that and Metal Gear 2 out completely as a dream or something.”
Kojima also admitted that at one point while writing The Phantom Pain, he thought the main character was Solid Snake instead of Big Boss and had to redo over thirty pages of dialogue.