Pues en el video del anuncio de halo 3 hay un easter egg de una señal de calle q el simbolo es de "cruzan grunts" y cuando alguien lo vio pregunto esto en bungie y le respondieron

Q I spotted an Easter Egg in the trailer after I watched it a few times. How do you explain that?

A The New Mombasa City Council had an incredibly efficient public works department until and even during the tragic and devastating Covenant invasion.

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Halo 3