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.

Execution · Pure Mechanics
Squad shooting against scripted hordes with light class-loadout decisions.

Execution · Competitive PvP
A soccer game testing passing timing and anticipation against opposing players.
Resident Evil: Operation Raccoon City leans Execution (Pure Mechanics); Ultimate Soccer leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Resident Evil: Operation Raccoon City
Third-person aim against zombie and soldier swarms carries the game
Ultimate Soccer
Passing and shot timing demand moderate control
Ultimate Soccer leans a little harder on reads, though the gap is small.
Resident Evil: Operation Raccoon City
Versus modes add human prediction; campaign AI is scripted
Ultimate Soccer
Versus humans, anticipating passes and runs matters
Ultimate Soccer leans a little harder on variance, though the gap is small.
Resident Evil: Operation Raccoon City
Infection mechanics and spawn chaos add mild unpredictability
Ultimate Soccer
Deflections and keeper saves add chance
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Resident Evil: Operation Raccoon City
Class abilities and loadouts are a shallow solvable layer
Ultimate Soccer
Formation and passing-strategy choices carry light 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.