Halo easter egg
From Halopedia, the Halo wiki
This is an Easter Egg on the first level of halo combat evolved.
About
In the first level. On the pillar of autumn's main screen i.e the big one near crotana's holo tank. You can see that it says target destination: halo. It shouldn't say that because the UNSC hadn't discovered the name of halo yet. They just called it the 'ring planet'.
