head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Practiced Mastery
An open-world chaos sandbox adding tornado weather to grappling-hook anarchy.

Execution · Practiced Mastery
Linear postwar crime story driven by cover shootouts and atmosphere.
Just Cause 4 leans Execution (Practiced Mastery); Mafia II leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Just Cause 4
Wingsuit and customised tether handling
Mafia II
Cover shooting and fistfight timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Just Cause 4
Enemy AI is static
Mafia II
Enemies are scripted
Just Cause 4 leans a little harder on variance, though the gap is small.
Just Cause 4
Weather fronts shake encounters up slightly
Mafia II
Story missions are fixed
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Just Cause 4
Frontline progression and loadout tinkering
Mafia II
Modest; learning encounter layouts
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.