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.

Execution · Practiced Mastery
The trilogy capper with the series' most polished competitive multiplayer.

Execution · Pure Mechanics
Classic WWII shooter whose objective-based multiplayer defined a genre.
Gears of War 3 leans Execution (Practiced Mastery); Return to Castle Wolfenstein leans Execution (Pure Mechanics).
Return to Castle Wolfenstein leans a little harder on execution, though the gap is small.
Gears of War 3
Refined wallbounce and gnasher precision dominate versus
Return to Castle Wolfenstein
Fast strafing and precise hitscan aim dominate duels
Return to Castle Wolfenstein leans a little harder on reads, though the gap is small.
Gears of War 3
Reading human rotations and bait plays matters
Return to Castle Wolfenstein
Multiplayer objective pushes hinge on outguessing human defense
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gears of War 3
Horde waves vary slightly
Return to Castle Wolfenstein
Fixed objectives and scripted singleplayer enemies, little randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Gears of War 3
Map spawns and loadout meta are mappable
Return to Castle Wolfenstein
Objective timings, class roles, and routes reward planning
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.