head to head
Neither is simply harder - they are hard in different places. Rambo III demands more execution; The Witcher 3: Wild Hunt demands more optimization.

Execution · Practiced Mastery
Retro run-and-gun reflexes over memorised level layouts and item routes.

Optimization · Practiced Mastery
A narrative action RPG where build planning matters more than reflex execution.
Rambo III leans Execution (Practiced Mastery); The Witcher 3: Wild Hunt leans Optimization (Practiced Mastery).
Rambo III leans clearly harder on execution.
Rambo III
Shooting and dodging through enemy soldiers leads the test
The Witcher 3: Wild Hunt
Combat timing matters but generous dodges forgive sloppy play.
The Witcher 3: Wild Hunt leans a little harder on reads, though the gap is small.
Rambo III
Guards follow simple fixed routines
The Witcher 3: Wild Hunt
Enemies use fixed AI behaviours; no adaptation.
The Witcher 3: Wild Hunt leans a little harder on variance, though the gap is small.
Rambo III
Level layouts are static once seen
The Witcher 3: Wild Hunt
Loot rolls and minor combat variance only.
The Witcher 3: Wild Hunt leans clearly harder on optimization.
Rambo III
Learning item locations and routes solves each mission
The Witcher 3: Wild Hunt
Builds, alchemy, and quest routing 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.