User blog comment:Damac1214/Tons of Call of Duty: Black Ops III info leaks - 2 Days til Full Reveal/@comment-1187559-20150425192137/@comment-1263839-20150425224744

Moon's easter egg is perhaps the most disheartening in that regard.

It's entirely doable by one player, but cannot be completed on Solo because of Quick Revive. This wouldn't be a problem if it wasn't so bloody necessary to have done the easter egg by Round 30 otherwise you're screwed given how damn unforgivable that map becomes in later rounds.

Of course, Shangri-La's easter egg is terrible, but I feel it better fits in with the map on the whole seeing as the only way to have a good time on that map is to do it Solo or have friends to do it with you.