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
A PS4-era Killzone where a Shadow Marshal and his OWL drone fight through a divided Helghast city.

Execution · Pure Mechanics
WWII shooter remembered for its Omaha Beach landing and tense rifle duels.
Killzone Shadow Fall leans Execution (Pure Mechanics); Medal of Honor: Allied Assault leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone Shadow Fall
Standard FPS aim and movement ceiling
Medal of Honor: Allied Assault
classic FPS aim, leaning, and sniping
Killzone Shadow Fall leans a little harder on reads, though the gap is small.
Killzone Shadow Fall
PvP modes reward predicting human players
Medal of Honor: Allied Assault
historic multiplayer scene rewarded outguessing humans
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone Shadow Fall
Some open level routes and spawn noise
Medal of Honor: Allied Assault
scripted ambushes surprise only once
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Killzone Shadow Fall
OWL drone usage and loadouts optimize cleanly
Medal of Honor: Allied Assault
encounter memorization, especially Omaha Beach
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.