head to head
Call of Duty: Modern Warfare 2 asks more than Soccer Online: Ball 3D, and the gap is execution.

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

Execution · Competitive PvP
An online multiplayer soccer game about positioning and outplaying human opponents.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); Soccer Online: Ball 3D 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
Soccer Online: Ball 3D
Controlling shots and movement precisely matters in matches
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
Soccer Online: Ball 3D
Outguessing human opponents' passes and positioning is constant
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
Soccer Online: Ball 3D
Some physics unpredictability but mostly skill-driven
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
Soccer Online: Ball 3D
Team coordination and positioning tactics reward planning
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.