head to head
vs
Marathon InfinityvsPerfect Dark
Marathon Infinity leans Execution (Practiced Mastery); Perfect Dark leans Execution (Practiced Mastery).
Marathon InfinityPerfect Dark
Axis by axis
Execution7 vs 7
Even - both lean on execution about the same.
Reads2 vs 3
Perfect Dark leans harder on reads: Multiplayer and clever sims add some human-style adaptation
Variance1 vs 2
Perfect Dark leans harder on variance: Mission scripting fixed once learned
Optimization5 vs 5
Even - both lean on optimization about the same.
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.