head to head
Marathon asks more than Counter-Strike: Global Offensive, and the gap is variance.

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

Execution · Competitive PvP
Aim duels against human crews layered over hidden-information loot gambles and extraction timing.
Counter-Strike: Global Offensive leans Execution (Competitive PvP); Marathon 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
Marathon
Gunfights against other crews reward raw aim heavily
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Counter-Strike: Global Offensive
Anti-stratting and mid-round adaptation
Marathon
Predicting human crews' rotations and ambushes is constant
Marathon leans clearly harder on variance.
Counter-Strike: Global Offensive
Information hidden until contact
Marathon
Loot spawns and unseen squads create hidden information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Counter-Strike: Global Offensive
Utility lineups, economy, and default strats
Marathon
Loadout economics and extraction routing sit underneath
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.