head to head
Call of Duty: Modern Warfare 2 asks more than Rocky Legends, and the gap is execution.

Execution · Competitive PvP
Blockbuster 2009 sequel famous for killstreak chains and frantic multiplayer.

Execution · Competitive PvP
Punch timing and counter prediction in movie-licensed boxing.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); Rocky Legends leans Execution (Competitive PvP).
Call of Duty: Modern Warfare 2 leans clearly harder on execution.
Call of Duty: Modern Warfare 2
Fast time-to-kill rewards raw aim and reflex
Rocky Legends
Punch timing and blocking windows carry every exchange
Call of Duty: Modern Warfare 2 leans a little harder on reads, though the gap is small.
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
Rocky Legends
Human opponents feint and bait counters in versus
Call of Duty: Modern Warfare 2 leans clearly harder on variance.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
Rocky Legends
Little randomness beyond minor damage rolls
Call of Duty: Modern Warfare 2 leans a little harder on optimization, though the gap is small.
Call of Duty: Modern Warfare 2
Killstreak economy, loadout and map knowledge
Rocky Legends
Training allocation and counter knowledge are plannable
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.