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
Tests solving suppress-and-flank squad puzzles more than raw shooting.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Brothers in Arms: Earned in Blood leans Optimization (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Brothers in Arms: Earned in Blood leans a little harder on execution, though the gap is small.
Brothers in Arms: Earned in Blood
Deliberately loose aim makes positioning matter more than twitch
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Brothers in Arms: Earned in Blood leans a little harder on reads, though the gap is small.
Brothers in Arms: Earned in Blood
AI flanks reactively but follows mappable suppress-and-flank logic
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Brothers in Arms: Earned in Blood leans a little harder on variance, though the gap is small.
Brothers in Arms: Earned in Blood
AI repositioning varies runs slightly between attempts
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Brothers in Arms: Earned in Blood leans a little harder on optimization, though the gap is small.
Brothers in Arms: Earned in Blood
Suppress-then-flank squad puzzles are the entire core loop
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.