head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
A survival horror shooter aboard a storm-tossed whaler where the rolling deck fights your aim as much as the parasites do.

Execution · Practiced Mastery
Open-zone Metro entry trading tunnels for a cross-Russia survival journey.
Cold Fear leans Execution (Practiced Mastery); Metro Exodus leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Cold Fear
Aiming on a storm-rocked ship deck is the signature test
Metro Exodus
open-zone gunplay and stealth takedowns
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Cold Fear
Exocels and mercenaries run fixed AI scripts
Metro Exodus
human and mutant AI is mappable
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Cold Fear
Some unknown ambushes on a first playthrough
Metro Exodus
weather and patrols add mild uncertainty
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Cold Fear
Weak-point targeting and ammo economy reward learned play
Metro Exodus
crafting, scavenging, and approach 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.