head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Competitive PvP
Definitive competitive tactical FPS balancing aim mastery with team strategy.

Execution · Competitive PvP
An acrobatic online shooter about movement-heavy gunplay against humans.
Counter-Strike: Global Offensive leans Execution (Competitive PvP); GunZ 2: The Second Duel leans Execution (Competitive PvP).
Counter-Strike: Global Offensive leans a little harder on execution, though the gap is small.
Counter-Strike: Global Offensive
Spray control and flick precision at the top
GunZ 2: The Second Duel
Acrobatic movement and aim are the core skill ceiling
Counter-Strike: Global Offensive leans a little harder on reads, though the gap is small.
Counter-Strike: Global Offensive
Anti-stratting and mid-round adaptation
GunZ 2: The Second Duel
Against humans, predicting movement and fakes matters
Counter-Strike: Global Offensive leans a little harder on variance, though the gap is small.
Counter-Strike: Global Offensive
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GunZ 2: The Second Duel
Minor weapon spread, mostly deterministic
Counter-Strike: Global Offensive leans a little harder on optimization, though the gap is small.
Counter-Strike: Global Offensive
Utility lineups, economy, and default strats
GunZ 2: The Second Duel
Class and loadout choices support but skill leads
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.