head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Competitive PvP
A movement-heavy battle royale shooter where squads fight for loot and zone control.

Execution · Competitive PvP
Blockbuster 2009 sequel famous for killstreak chains and frantic multiplayer.
Apex Legends leans Execution (Competitive PvP); Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Apex Legends
Movement tech and recoil control gate fights heavily.
Call of Duty: Modern Warfare 2
Fast time-to-kill rewards raw aim and reflex
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Apex Legends
Adaptive squads in unpredictable rotations and third-parties.
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
Apex Legends leans a little harder on variance, though the gap is small.
Apex Legends
Loot RNG and ring pulls shape every match.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Apex Legends
Legend synergy, rotations, and inventory routing matter.
Call of Duty: Modern Warfare 2
Killstreak economy, loadout and map knowledge
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.