head to head
Armored Core VI: Fires of Rubicon asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Execution · Practiced Mastery
A fast mech-action game where assembling the right build and piloting it hard both decide bosses.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Armored Core VI: Fires of Rubicon leans Execution (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Armored Core VI: Fires of Rubicon leans clearly harder on execution.
Armored Core VI: Fires of Rubicon
Boss fights demand sharp dodges and stagger timing
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Armored Core VI: Fires of Rubicon leans a little harder on reads, though the gap is small.
Armored Core VI: Fires of Rubicon
Campaign bosses are scripted; PvP is niche
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Grand Theft Auto: San Andreas leans a little harder on variance, though the gap is small.
Armored Core VI: Fires of Rubicon
Fixed encounters
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Armored Core VI: Fires of Rubicon leans a little harder on optimization, though the gap is small.
Armored Core VI: Fires of Rubicon
Build crafting trivializes many bosses
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
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.