head to head
vs
Call of Duty ClassicvsHalf-Life 2
Call of Duty Classic leans Execution (Practiced Mastery); Half-Life 2 leans Execution (Pure Mechanics).
Call of Duty ClassicHalf-Life 2
Axis by axis
Execution6 vs 6
Even - both lean on execution about the same.
Reads0 vs 1
Half-Life 2 leans harder on reads: Combine AI scripted, non-adaptive.
Variance1 vs 1
Even - both lean on variance about the same.
Optimization4 vs 3
Call of Duty Classic leans harder on optimization: Knowing spawn triggers and cover routes trivialises veteran difficulty
Two games can score the same on an axis and still test it in very different ways - read each rationale, not just the number.