20GB Modern Warfare update unlocks Call of Duty Warzone

Battle Royale

Win Condition: Be the last squad standing.
Team Composition: Squads of three at launch
Redeployment Mechanics: Self-revive kits which arepurchase-able with in-match currency from Buy Stations or can looted in-match; Squad Buybacks which allow you to purchase a teammate’s redeployment from Buy Stations, or The Gulag (A 1v1 deathmatch that only occurs after the first elimination; the winner is granted redeployment back into the match).
Key Game Mechanics: Looting. Get inventory items on the ground, in Supply Boxes, from Air Drops, by completing in-match Contracts, from Buy Stations, and from killing enemy players.
Additional Insights: Calling in a Loadout Drop gives you access to your personally crafted loadouts, plus perk benefits.

Plunder

Win Condition: Collect more Cash than opposing teams. The first team to collect $1 Million starts a two-minute timer; the leading team after the two-minute bonus round is the winner.
Team Composition: Squads of three at launch
Redeployment Mechanic: Respawns enabled. Respawn occurs after a set delay period which can be shortened with a Self-Revive Kit.
Key Game Mechanics: Deposit Cash to protect it. Upon your death, a percentage of any held Cash is dropped and potentially picked up by enemy teams.
Additional Insights: Get Cash from looting, robbing banks, completing Contracts, and killing enemy players.