head to head
vs
Killing Floor 2vsLeft 4 Dead 2
Killing Floor 2 leans Execution (Practiced Mastery); Left 4 Dead 2 leans Execution (Practiced Mastery).
Killing Floor 2Left 4 Dead 2
Axis by axis
Execution7 vs 6
Killing Floor 2 leans harder on execution: Headshot-focused aim and weapon-switching
Reads1 vs 3
Left 4 Dead 2 leans harder on reads: Versus special-infected ambushes have reads
Variance5 vs 5
Even - both lean on variance about the same.
Optimization7 vs 6
Killing Floor 2 leans harder on optimization: Perks, weapon synergies, money management
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.