Easter Eggs in multiplayer maps?

We saw with Anniversary that 343i/Certain Affinity is willing to put Easter Eggs in multiplayer maps, but I’m wondering if they’ll do the same with Halo 4. If so, I hope they’ll be well hidden and not found within a day or two.

Ideas for Eggs are welcome.

I hope so. I also hope they’re well hidden as well and take a good while for the community to find, months.

Do you have any ideas, OP?

> I hope so. I also hope they’re well hidden as well and take a good while for the community to find, months.
>
> Do you have any ideas, OP?

Maybe the Cortana face in a computer console like on High Ground in Halo 3.

> I hope so. I also hope they’re well hidden as well and take a good while for the community to find, months.
>
> Do you have any ideas, OP?

Perhaps one that’s hidden underwater, or only appears at certain intervals like the Grunt in a barrel. Maybe even one that changes locations every time you load up the map.