Crow's Nest is a Halo 3 Campaign level which features Easter Eggs that include the voices of various Red vs. Blue voice actors as two Marines arguing over a password. The voices vary depending on difficulty. On Easy and Normal it's Jason Saldaña (Tucker) and Matt Hullum (Doc); On Heroic it's Geoff Ramsey (Grif) and Gus Sorola (Simmons); On Legendary, it is Burnie Burns (Church) and Joel Heyman (Caboose).
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