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 · Practiced Mastery
Co-op horde shooting that tests aim plus class-build and choke-point planning.

Execution · Practiced Mastery
First-person parkour against zombies, especially terrifying after dark.
Aliens: Fireteam Elite leans Execution (Practiced Mastery); Dying Light 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.
Aliens: Fireteam Elite
Holding aim on swarming xenomorphs is the core demand
Dying Light
Parkour traversal and melee timing demanding.
Dying Light leans a little harder on reads, though the gap is small.
Aliens: Fireteam Elite
Horde AI rushes on scripts, never modelling the squad
Dying Light
Zombie AI scripted, non-adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens: Fireteam Elite
Spawn mixes vary mildly between runs
Dying Light
Night-hunter encounters bring randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Aliens: Fireteam Elite
Class builds, perk synergies and choke-point setups are solvable
Dying Light
Crafting, blueprints, skill trees solvable.
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.