Call of Duty Warzone and Modern Warfare share a Halloween event in 2020: Haunting of Verdansk. The event runs from October 20 through November 3. It's a multi-pronged event featuring crossovers with SAW and The Texas Chainsaw Massacre, but some of it does come at a cost.
If you want the film crossover treats, you'll have to shell out for the SAW and Chainsaw Massacre bundles, both of which include skins, items, and weapons inspired by their respective franchises.
Activision promised more Halloween-themed bundles for the in-game store, including the new Dr. Karlov bundle focused on regional Verdansk folklore and a Grim Reaper bundle.
In addition to Trick or Treat crates with Halloween items galore, Haunting of Verdansk adds night modes to event maps, zombie battle royale, scavenger hunts, and much, much more.
[Source: Call of Duty]