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 nanosuit-powered FPS where you choose between cloaked stealth and armored assault through a ruined New York.

Execution · Practiced Mastery
An ultraviolent co-op brawler dragging four fighters through a grim drug-soaked Soviet underworld.
Crysis 2 leans Execution (Practiced Mastery); Mother Russia Bleeds 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.
Crysis 2
Aimbot trivialises every firefight; aim and movement carry it
Mother Russia Bleeds
Brutal crowd fights demand sharp dodges, grabs, and timing.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Crysis 2
Scripted Ceph and soldiers follow fixed patterns
Mother Russia Bleeds
Enemies are scripted, never modelling you.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Crysis 2
Mostly known encounters with mild patrol randomness
Mother Russia Bleeds
Minor enemy mix and syringe-drop randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Crysis 2
Suit energy management and choosing stealth-versus-armor approaches
Mother Russia Bleeds
Nekro drug management and wave layouts are learnable.
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.