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.

Optimization · Practiced Mastery
Stealth systems mastery against scripted guards with moderate execution needs.

Optimization · Practiced Mastery
A squad-based Star Wars shooter where commanding your clone team wins battles.
Metal Gear Solid 3: Subsistence leans Optimization (Practiced Mastery); Star Wars: Republic Commando 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.
Metal Gear Solid 3: Subsistence
CQC, aiming and timed escapes demand real but moderate precision
Star Wars: Republic Commando
Solid gunplay but squad does much lifting
Metal Gear Solid 3: Subsistence leans a little harder on reads, though the gap is small.
Metal Gear Solid 3: Subsistence
Guards and bosses run rich but ultimately scripted behaviours
Star Wars: Republic Commando
Droid AI follows fixed behaviours
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 3: Subsistence
Patrols and boss quirks are unknown only until studied
Star Wars: Republic Commando
Encounters are scripted and repeatable
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metal Gear Solid 3: Subsistence
Camo, food and route systems reward deep mastery
Star Wars: Republic Commando
Squad positioning and order timing decide fights
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.