head to head
Day of Defeat: SourcevsShootMania Storm
Day of Defeat: Source leans Execution (Competitive PvP); ShootMania Storm leans Execution (Pure Mechanics).
Day of Defeat: SourceShootMania Storm
Axis by axis
Execution8 vs 9
ShootMania Storm leans harder on execution: Projectile aim and slide movement carry every elimination
Reads6 vs 6
Even - both lean on reads about the same.
Variance2 vs 1
Day of Defeat: Source leans harder on variance: Known maps, minimal randomness beyond spawn waves
Optimization4 vs 4
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.

