head to head
Grand Theft Auto V asks more than Redfall, and the gap is reads.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Execution · Practiced Mastery
An open-world co-op shooter testing moderate aim and loot-driven build progression.
Grand Theft Auto V leans Execution (Practiced Mastery); Redfall 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.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Redfall
Standard FPS gunplay with forgiving co-op margins
Grand Theft Auto V leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Redfall
Vampires and cultists run predictable AI scripts
Redfall leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Redfall
Loot rolls and open-world spawns add randomness
Redfall leans a little harder on optimization, though the gap is small.
Grand Theft Auto V
Heists, money loops, builds learnable.
Redfall
Hero builds and weapon tiers form a modest progression puzzle
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.