head to head
Call of Duty: Modern Warfare 2 asks more than The Mean Greens: Plastic Warfare, and the gap is optimization.

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

Execution · Competitive PvP
A casual team shootout where aim and basic opponent awareness decide rounds.
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); The Mean Greens: Plastic Warfare 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
The Mean Greens: Plastic Warfare
Aimbot would dominate these third-person toy-soldier shootouts
Call of Duty: Modern Warfare 2 leans clearly harder on reads.
Call of Duty: Modern Warfare 2
Outguessing human rotations and flanks
The Mean Greens: Plastic Warfare
Human opponents in objective modes reward positional prediction
Call of Duty: Modern Warfare 2 leans a little harder on variance, though the gap is small.
Call of Duty: Modern Warfare 2
Spawn flips and killstreak randomness
The Mean Greens: Plastic Warfare
Random spawns and chaotic lobbies add mild noise
Call of Duty: Modern Warfare 2 leans clearly harder on optimization.
Call of Duty: Modern Warfare 2
Killstreak economy, loadout and map knowledge
The Mean Greens: Plastic Warfare
Objective routes are simple; little system depth to solve
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.