During the beginning of the game, the main character finds himself in a completely closed-off and isolated area that no one could enter or leave without going through a single door. The player then goes from that area (through said door) to another isolated area containing one body. However, as he is investigating the body, the main character is attacked from behind by a zombie. There's no way the zombie could have shown up behind him as both areas were tightly closed off and isolated.
The imprisoned boy's diary states that the prisoner's planned escape was on October 10th. However, Vincent's diary states in his first entry, on October 10th, that the attempted escape happened the night before.
100% of the zombies on Sheena Island are males, yet the memos indicate there were also women as well. Where are the female zombies?