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
Twin-stick co-op shooter precursor.

Execution · Twitch Chaos
Procedural room-clearing where randomised suspects punish sloppy doctrine and slow aim.
Helldivers leans Optimization (Practiced Mastery); Police Stories leans Execution (Twitch Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Helldivers
Twin-stick aim and stratagem inputs
Police Stories
Snap aim and door-breach timing decide split-second encounters
Helldivers leans a little harder on reads, though the gap is small.
Helldivers
Scripted enemies, no real reads
Police Stories
Suspect AI is randomised, not adaptively modelling you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Helldivers
Random spawns and patrol pressure
Police Stories
Suspect placement and compliance rolls differ every attempt
Helldivers leans a little harder on optimization, though the gap is small.
Helldivers
Loadout combos and stratagem chains
Police Stories
Room-clearing procedure and tool usage converge to doctrine
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.