head to head
Runbow asks more than Call of Duty 3, and the gap is variance.

Execution · Pure Mechanics
WWII gunfight execution with light multiplayer prediction.

Execution · Pure Mechanics
Reaction-speed platform racing where shifting colours keep redrawing the level under you.
Call of Duty 3 leans Execution (Pure Mechanics); Runbow leans Execution (Pure Mechanics).
Runbow leans a little harder on execution, though the gap is small.
Call of Duty 3
Aimbot trivialises both campaign and multiplayer gunfights
Runbow
Fast platform racing through vanishing platforms is pure reaction
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty 3
Multiplayer adds modest human positional prediction
Runbow
Light jostling with human racers, but little deep prediction
Runbow leans clearly harder on variance.
Call of Duty 3
Scripted setpieces and spawn flow add minor unknowns
Runbow
Colour swaps and party chaos randomise each race
Call of Duty 3 leans a little harder on optimization, though the gap is small.
Call of Duty 3
Map knowledge and weapon choice reward light study
Runbow
Minimal systems - momentum tricks and level memory only
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.