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
Big Daddy POV return to Rapture with tighter combat systems.

Execution · Practiced Mastery
An open-world co-op shooter testing moderate aim and loot-driven build progression.
BioShock 2 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.
BioShock 2
Dual-wield drill and gun timing matter.
Redfall
Standard FPS gunplay with forgiving co-op margins
BioShock 2 leans a little harder on reads, though the gap is small.
BioShock 2
Splicer AI scripted, not adaptive.
Redfall
Vampires and cultists run predictable AI scripts
Redfall leans a little harder on variance, though the gap is small.
BioShock 2
Sister-gathering waves add randomness.
Redfall
Loot rolls and open-world spawns add randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
BioShock 2
Plasmid combos and gear loadouts solvable.
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.