Fire Sale Warzone is now a part of the game following the massive update that went live to start Season 4. It is one of the three mid-game events that were announced in the update.
The biggest addition to COD: Warzone is the introduction of the three mid-game events that can take place in a match. They are Fire Sale, Jailbreak, and the Supply Chopper.
During Fire Sale, almost all the items at a Buy Station are discounted up to 80 percent, and some are even free, including buying back eliminated teammates. Loadout Drops are not discounted.
Fire Sale Warzone: Everything You Need to Know
Fire Sale only lasts for 60 seconds during a match, so the Buy Stations are going to be insanely crowded while it's happening. This is going to create more chances of teams running into each other at the Buy Stations, and certainly more fireworks.
The other two mid-game events, Jailbreak and the Supply Chopper, have a massive impact on matches and might even be the deciding factor in which team secures the dub. Only one of the mid-game events will take place during a match, and sometimes they won't even happen at all.
Players new to Warzone should learn more about Fire Sale, Jailbreak and the other new additions to the game before hopping in a match, otherwise they'll be caugh off guard when a mid-game event starts.