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 · Pure Mechanics
Arcade hockey reflexes with light shot-angle guessing against human opponents.

Execution · Pure Mechanics
Squad shooting against scripted hordes with light class-loadout decisions.
Blades of Steel leans Execution (Pure Mechanics); Resident Evil: Operation Raccoon City leans Execution (Pure Mechanics).
Blades of Steel leans a little harder on execution, though the gap is small.
Blades of Steel
Skating, passing and shot timing decide every rush
Resident Evil: Operation Raccoon City
Third-person aim against zombie and soldier swarms carries the game
Blades of Steel leans a little harder on reads, though the gap is small.
Blades of Steel
Versus a human, goalie duels become guessing games
Resident Evil: Operation Raccoon City
Versus modes add human prediction; campaign AI is scripted
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Blades of Steel
Fights and bounces add small arcade chaos
Resident Evil: Operation Raccoon City
Infection mechanics and spawn chaos add mild unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Blades of Steel
Angle exploits on the goalie are quickly mapped
Resident Evil: Operation Raccoon City
Class abilities and loadouts are a shallow solvable layer
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.