head to head
Left 4 Dead 2 asks more than Remnant: From the Ashes, and the gap is reads.

Execution · Practiced Mastery
Co-op zombie shooter with adaptive AI Director.

Execution · Practiced Mastery
Soulslike shooter where procedurally rolled campaigns randomize bosses and loot.
Left 4 Dead 2 leans Execution (Practiced Mastery); Remnant: From the Ashes leans Execution (Practiced Mastery).
Remnant: From the Ashes leans a little harder on execution, though the gap is small.
Left 4 Dead 2
Headshots under horde pressure need aim
Remnant: From the Ashes
Souls-style dodging fused with sustained gun accuracy.
Left 4 Dead 2 leans clearly harder on reads.
Left 4 Dead 2
Versus special-infected ambushes have reads
Remnant: From the Ashes
Bosses are scripted movesets despite feeling adversarial.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Left 4 Dead 2
AI Director randomizes spawns and items
Remnant: From the Ashes
Procedurally rolled worlds, bosses, and item availability.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Left 4 Dead 2
Route knowledge and weapon picks solvable
Remnant: From the Ashes
Build crafting and learned boss patterns converge to mastery.
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.