head to head
Call of Duty: Modern Warfare 2 asks more than Worms World Party, and the gap is execution.

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

Execution · Competitive PvP
Turn-based artillery duels testing shot judgement, opponent prediction, and weapon economy under wind.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); Worms World Party 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
Worms World Party
Precise angle and power judgement on every shot matters
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
Worms World Party
Human opponents reposition and bait - predicting them wins games
Worms World Party leans a little harder on variance, though the gap is small.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
Worms World Party
Wind, crate drops and terrain destruction add real chaos
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
Worms World Party
Weapon selection, positioning and turn economy 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.