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
Run-and-gun reflexes against scripted zombie and demon waves in WWI trenches.

Execution · Practiced Mastery
Arcade-style western shooter built around stage gunfights and showdown duels.
NecroVisioN: Lost Company leans Execution (Practiced Mastery); Red Dead Revolver 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.
NecroVisioN: Lost Company
Twitch shooting and melee-combo timing carry the campaign
Red Dead Revolver
Arcade gunplay and duel timing dominate
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
NecroVisioN: Lost Company
Zombie and demon waves are scripted, never adaptive
Red Dead Revolver
Enemies are scripted shooting-gallery foes
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
NecroVisioN: Lost Company
Enemy placements are fixed once a level is known
Red Dead Revolver
Minor spawn variation
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
NecroVisioN: Lost Company
Weapon choice and secret-hunting reward modest planning
Red Dead Revolver
Level layouts and duel rhythms 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.