Those rings are actually in the MM version as well, good work though!
Posted by: Nostatement
I'm currently searching for an easter-egg n' it's driving me crazy. I am certain there must be one on "long night of solace" while on the beach. There's a soft killzone if you go in the water, however, should you push some crates in the ocean and stand on them, you're not out of bounds. So that's wierd. And then there's this stupid ass wraith if you run down to the docks on the left side of the enterance that fills no purpose at all except the dialog line "There's a wraith on the lower platform!"
So... I've been thinking. By the wraith there's a door that says "authorized personnel only" and since bungie just recently turned on blue flames for all of us, it might just have been recently accessible for the world. Just a thought.
Oh, by the way. If you feel like takin' a bath, the water won't kill you like in other maps. So that's wierd as well...
Oh, and another by the way. Should one go sightseeing the countdown-part of the map, you might find that it differs from the multiplayer-version in some ways. Most noteable, some rings painted on the floor.
I'm sick n' tierd of searching but i thought i'd post my findings here anyways. Just in case