Bulletin Board

Summary
There's a bulletin board found just outside the bridge of the Pillar of Autumn. Some of the messages look plausible, some are just silly, others are easter eggs.

One says: "Missing: Calico Cat: Answers to Jonesy" This is a reference to Aliens, a movie Halo 1 is based off of in many ways.

There is a picture of Earth from the Moon with the caption "Fight for her" on it. This is likely propaganda within the UNSC.