head to head
Quake asks more than Call of Duty, and the gap is execution.

Execution · Practiced Mastery
The original 2003 WWII shooter built around cinematic squad set pieces.

Execution · Pure Mechanics
The original twitch FPS - movement tech and rockets define skill.
Call of Duty leans Execution (Practiced Mastery); Quake leans Execution (Pure Mechanics).
Quake leans clearly harder on execution.
Call of Duty
Aim and reaction carry the scripted firefights
Quake
Rocket aim and movement tech ceiling massive.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty
Light multiplayer prediction; campaign AI is scripted
Quake
PvP duels involve real opponent modeling.
Call of Duty leans a little harder on variance, though the gap is small.
Call of Duty
Some spawn and hit unpredictability
Quake
Item timing deterministic once learned.
Call of Duty leans a little harder on optimization, though the gap is small.
Call of Duty
Memorising set pieces and weapon positions
Quake
Map control and item routes solvable.
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.