head to head
Call of Duty: Warzone asks more than Overwatch, and the gap is variance.

Execution · Grand Arena
Battle royale built on COD's tight gunplay.

Execution · Grand Arena
Team hero shooter blending FPS mechanics with ability economy mind games.
Call of Duty: Warzone leans Execution (Grand Arena); Overwatch leans Execution (Grand Arena).
Call of Duty: Warzone leans a little harder on execution, though the gap is small.
Call of Duty: Warzone
Long-range gunfights reward perfect aim
Overwatch
Hero aim, movement, and ability timing
Overwatch leans a little harder on reads, though the gap is small.
Call of Duty: Warzone
Rotations and third-party reads decide fights
Overwatch
Ult tracking, flanks, and baiting human teams
Call of Duty: Warzone leans clearly harder on variance.
Call of Duty: Warzone
Drops, loot, circles inject real RNG
Overwatch
Minor spread and matchmaking noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Warzone
Meta loadouts and rotations heavily solved
Overwatch
Team comps, ult economy, and positioning theory
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.