head to head
vs
Call of Duty: Modern Warfare 2vsCounter-Strike: Source
Call of Duty: Modern Warfare 2 leans Execution (Competitive PvP); Counter-Strike: Source leans Execution (Competitive PvP).
Call of Duty: Modern Warfare 2Counter-Strike: Source
Axis by axis
Execution8 vs 9
Counter-Strike: Source leans harder on execution: Recoil control and crosshair placement decide duels
Reads6 vs 7
Counter-Strike: Source leans harder on reads: Outguessing rotations, fakes, and timing of human opponents
Variance3 vs 3
Even - both lean on variance about the same.
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.