Call of Duty: Black Ops Cold War Season 1's latest update introduced the new Firebase Z map for the Zombies mode.Our new #BlackOpsColdWar content update will go live at 11PM PT Feb. 3 / 2AM ET Feb. 4 / 7AM GMT Feb. 4.This will include the immediate launch of #FirebaseZ, Express, new modes and playlists, four additional Prop Hunt maps, and much more!— Treyarch Studios (@Treyarch) February 1, 2021Firebase Z is currently live in Call of Duty: Black Ops Cold War and players can freely explore the map. Similar to the easter egg present in Die Maschine, Treyarch has included another Easter egg in the Firebase Z map as well. However, the Easter egg is yet to be revealed as Treyarch is scheduled to release the same within a few hours.UPDATE: The #FirebaseZ main Easter Egg quest will now be enabled at 10AM PT / 1PM ET / 6PM GMT Friday, Feb. 5th.Rest up and hydrate before the hunt begins!— Treyarch Studios (@Treyarch) February 5, 2021This delay is because Treyarch wants to ensure that "everyone can start the hunt on equal footing." Although the Firebase Z map is currently live in Call of Duty: Black Ops Cold War, players will be able to hunt for the easter egg from 10 a.m. Pacific Time on February 5th.The following is a rundown of everything that players should know before heading into Firebase Z to uncover the hidden Easter egg.Firebase Z Easter egg in Call of Duty: Black Ops Cold WarIt took players a little more than three hours to uncover the hidden Easter egg in Die Maschine after it was released. Given that the latest update containing the Firebase Z map was released at an unusual time, making it difficult for everyone to track the hidden Easter egg.That has led to Treyarch delaying the Easter egg's reveal by a few hours to ensure maximum community participation. However, judging by the treasure present on Die Maschine, players should expect the Firebase Z iteration to be similar to its predecessor.It is tough to determine what the Easter egg might be referencing. Call of Duty: Black Ops Cold War's first Easter egg proposed that the developers keep up with trending social media references. Nevertheless, the developers can also choose to go a different route.NOW LIVE in #BlackOpsColdWar:• #FirebaseZ• Express 24/7• Tombstone Soda, Artillery & Napalm Strike in Zombies• 40-player Endurance• 4 new Prop Hunt maps• 3v3 Gunfight Snipers Only• Nuketown ’84 in Gunfight• Gunfight Blueprints• Gunfight Custom Games+ more! pic.twitter.com/f3t8C1tizD— Treyarch Studios (@Treyarch) February 4, 2021However, until the surprise is official revealed in Call of Duty: Black Ops Cold War, players can check out all the new additions with the new update. At the time of writing, it is just a matter of a few hours before the entire community can start scavenging for the latest easter egg from Treyarch.