head to head
Ready or Not asks more than Call of Duty: Modern Warfare 3, and the gap is variance.

Execution · Pure Mechanics
A fast-paced military shooter where twitch aim against other players is the core test.

Execution · Pure Mechanics
Tactical SWAT shooter with lethal TTK.
Call of Duty: Modern Warfare 3 leans Execution (Pure Mechanics); Ready or Not leans Execution (Pure Mechanics).
Call of Duty: Modern Warfare 3 leans a little harder on execution, though the gap is small.
Call of Duty: Modern Warfare 3
aim and reflexes decide most engagements
Ready or Not
Lethal TTK and recoil punish slop
Call of Duty: Modern Warfare 3 leans a little harder on reads, though the gap is small.
Call of Duty: Modern Warfare 3
predicting human opponent positioning and habits
Ready or Not
Mostly scripted suspects, limited reads
Ready or Not leans clearly harder on variance.
Call of Duty: Modern Warfare 3
spawn placement and loadout drops vary
Ready or Not
Suspect placement and AI behavior varies
Ready or Not leans a little harder on optimization, though the gap is small.
Call of Duty: Modern Warfare 3
loadout tuning and map knowledge help
Ready or Not
Loadouts, breaching tools, team plans
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.