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

Execution · Practiced Mastery
A Himalayan open-world shooter refining the outpost-clearing formula.

Optimization · Practiced Mastery
Threading precise inputs through scripted guard gauntlets aboard a controlled and memorisable facility.
Far Cry 4 leans Execution (Practiced Mastery); Metal Gear Solid 2: Sons of Liberty leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Far Cry 4
Gunplay plus gyrocopter and elephant chaos
Metal Gear Solid 2: Sons of Liberty
First-person aim and guard reaction windows demand precise input
Metal Gear Solid 2: Sons of Liberty leans a little harder on reads, though the gap is small.
Far Cry 4
Scripted outpost AI
Metal Gear Solid 2: Sons of Liberty
Guards radio for backup on scripted triggers, not adaptive tactics
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Far Cry 4
Wildlife and patrol variation
Metal Gear Solid 2: Sons of Liberty
Alert timers and item pickups create some hidden-state tension
Metal Gear Solid 2: Sons of Liberty leans a little harder on optimization, though the gap is small.
Far Cry 4
Outpost approaches and skill trees are plannable
Metal Gear Solid 2: Sons of Liberty
Chokepoint memorisation and radar manipulation are learnable and repeatable
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.