head to head
Call of Duty: Modern Warfare 2 asks more than All-Pro Football 2K8, and the gap is execution.

Execution · Competitive PvP
Play-calling mind games against a human layered over stick execution and roster planning.

Execution · Competitive PvP
Blockbuster 2009 sequel famous for killstreak chains and frantic multiplayer.
All-Pro Football 2K8 leans Execution (Competitive PvP); Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP).
Call of Duty: Modern Warfare 2 leans clearly harder on execution.
All-Pro Football 2K8
Stick skills on passes, jukes and tackles decide individual plays
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.
All-Pro Football 2K8
Play-calling against a human is a genuine prediction duel
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
All-Pro Football 2K8
Catches, fumbles and matchup rolls add per-play noise
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.
All-Pro Football 2K8
Roster construction and playbook knowledge set the floor
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.