head to head
vs
Killzone: MercenaryvsPerfect Dark
Killzone: Mercenary leans Execution (Pure Mechanics); Perfect Dark leans Execution (Practiced Mastery).
Killzone: MercenaryPerfect Dark
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads4 vs 3
Killzone: Mercenary leans harder on reads: Multiplayer rewards reading enemy rotations and habits
Variance2 vs 2
Even - both lean on variance about the same.
Optimization4 vs 5
Perfect Dark leans harder on optimization: Objective routing on harder difficulty tiers
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.