Big Promotion is the first memo that the player can pick up in Silent Hill: Book of Memories, and is found on the floor next to the world portal in Zone 1 (Fire World).
Transcript[]
"Finally got news on the big promotion--they gave it to Derek. I'm a
little disappointed. I know he's been here longer, but I worked so
hard these past few months. It was probably dumb to get my
hopes up"