head to head
Sniper: Ghost Warrior 2 asks more than Grand Theft Auto: San Andreas, and the gap is execution.

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

Execution · Practiced Mastery
Ballistics compensation along tightly scripted sniping corridors.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Sniper: Ghost Warrior 2 leans Execution (Practiced Mastery).
Sniper: Ghost Warrior 2 leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Sniper: Ghost Warrior 2
Breath control, wind and drop compensation on every shot
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Sniper: Ghost Warrior 2
Enemies run scripted patrols and alarms
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
Sniper: Ghost Warrior 2
Wind values randomise individual shot solutions
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Sniper: Ghost Warrior 2
Memorising target sequences and stealth routes carries missions
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.