From DownSights: "Rebirth Island is a most notorious island, well known amongst the Call of Duty (COD) veterans, and makes its return as a separate map in Warzone. The new gameplay mechanics incorporated for this specific map go well with the name "Rebirth."
Upon dying, you redeploy into the game, provided your teammates stay alive until the rebirth timer runs out. If they die before the timer runs out, you and your team will be out of the game for good. This mechanic helps in this easter egg as well. Given how small the Rebirth Island map is, you can expect to die a lot...A LOT.
You can also perform an easter egg on the island similar to how you've done the Bunker 11 and stadium easter eggs. There is a secret bunker on Rebirth Island which can be opened using a set number of codes acquired by performing a very tedious and lengthy easter egg."

Raise the stakes in Season 03, the next massive content update bringing new maps, modes, weapons, events and more across Black Ops 7. Brave the frigid winds in Multiplayer Map Beacon and fight in the narrow confines of a submarine in Abyss; push the rounds in the Ashwood Survival Map in Zombies and drop into the new Launch Pad POI in Verdansk. Plus, Endgame goes free to play for a limited time, with even more new content! Get the full details on this and much more so you’re ready to go when Season 03 launches on April 2.

Enter Black Ops Royale, the new Battle Royale mode for Call of Duty: Warzone that will support up to 100 players across 25 squads of four. Unlike the usual modes, there are no Loadouts, with all players beginning on an equal footing. You drop into the fray with only a pistol and a Wingsuit. There are no Buy Stations. There’s no Gulag. There’s no in-game cash. You’ll need to scavenge for loot, securing weapons, and upgrading them through rarity tiers to control the chaos, and annihilate enemy squads.

This is an interesting promotion. Those looking to add shaving to their COD experience.