head to head
Call of Duty: Modern Warfare 2 asks more than Fight Night 2004, and the gap is variance.

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

Execution · Competitive PvP
Analog-stick boxing testing punch precision and counter-baiting against human opponents.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); Fight Night 2004 leans Execution (Competitive PvP).
Call of Duty: Modern Warfare 2 leans a little harder on execution, though the gap is small.
Call of Duty: Modern Warfare 2
Fast time-to-kill rewards raw aim and reflex
Fight Night 2004
Analog punch control and block timing are the core test
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
Fight Night 2004
Versus humans, baiting counters and feinting is genuine prediction
Call of Duty: Modern Warfare 2 leans clearly harder on variance.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
Fight Night 2004
Outcomes follow inputs with little randomness
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
Fight Night 2004
Stat training and stamina management add a planning layer
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.