head to head
Super Smash Bros. Melee asks more than Insurgency: Sandstorm, and the gap is reads.

Execution · Competitive PvP
Hardcore tactical shooter with lethal TTK.

Execution · Competitive PvP
A platform fighter with one of the highest execution ceilings in any competitive game, layered on top of deep human reads.
Insurgency: Sandstorm leans Execution (Competitive PvP); Super Smash Bros. Melee leans Execution (Competitive PvP).
Super Smash Bros. Melee leans a little harder on execution, though the gap is small.
Insurgency: Sandstorm
One-shot kills demand pixel-perfect aim
Super Smash Bros. Melee
Wavedashing, L-cancels, and tech-chasing set an extreme physical ceiling
Super Smash Bros. Melee leans clearly harder on reads.
Insurgency: Sandstorm
Holding angles and pushes are mind games
Super Smash Bros. Melee
Reading DI choices and opponent adaptive habits is constant and non-convergent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Insurgency: Sandstorm
Very low RNG, near pure skill
Super Smash Bros. Melee
Stage hazard RNG and spawn positions add marginal chaos
Super Smash Bros. Melee leans clearly harder on optimization.
Insurgency: Sandstorm
Loadout points and class roles tuned
Super Smash Bros. Melee
Character matchup tiers and optimal movement routing are deeply studied
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.