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

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

Execution · Competitive PvP
The Dreamcast classic that defined weapons-based 3D fighting with fluid eight-way movement.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); Soulcalibur 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
Soulcalibur
Eight-way run and precise spacing reward sharp movement hands.
Soulcalibur leans a little harder on reads, though the gap is small.
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
Soulcalibur
Mid-low-throw mixups and Guard Impact baits against adapting opponents.
Call of Duty: Modern Warfare 2 leans clearly harder on variance.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
Soulcalibur
Fully deterministic; no hidden systems.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare 2
Killstreak economy, loadout and map knowledge
Soulcalibur
Ring-out positioning and frame knowledge are deeply labbable.
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.