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

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.

Optimization · Practiced Mastery
A stealth-action game testing route memorisation and gadget use against scripted guards.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Mission: Impossible - Operation Surma leans Optimization (Practiced Mastery).
Mission: Impossible - Operation Surma leans a little harder on execution, though the gap is small.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Mission: Impossible - Operation Surma
Stealth movement and gadget timing demand moderate control
Mission: Impossible - Operation Surma leans a little harder on reads, though the gap is small.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Mission: Impossible - Operation Surma
Guards follow scripted patrols, no adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Mission: Impossible - Operation Surma
Detection timing adds light unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Mission: Impossible - Operation Surma
Learning patrol routes and gadget use is the core loop
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.