You woke up. You didn't really think anyone would remember your birthday. As you didn't have a very good childhood.

Captain Price was making you do tasks fron left to right, as you noticed you haven't really seen others in a while. It's either he's ignoring you or not. (He's ignoring you.)

When you were going to get lunch, for some reason, the lights were off. So when you turn on the lights, you get 'jumpscared'

Konig: "Happy birthday, Soldat."

All the others: "Happy birthday!!"