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
Fast aim duels plus predicting human movement on memorised maps.

Execution · Competitive PvP
Definitive competitive tactical FPS balancing aim mastery with team strategy.
Call of Duty: Modern Warfare Remastered leans Execution (Competitive PvP); Counter-Strike: Global Offensive leans Execution (Competitive PvP).
Counter-Strike: Global Offensive leans a little harder on execution, though the gap is small.
Call of Duty: Modern Warfare Remastered
Snap aim and reaction time dominate every gunfight
Counter-Strike: Global Offensive
Spray control and flick precision at the top
Counter-Strike: Global Offensive leans a little harder on reads, though the gap is small.
Call of Duty: Modern Warfare Remastered
Online opponents rotate and adapt; pre-aiming them is prediction
Counter-Strike: Global Offensive
Anti-stratting and mid-round adaptation
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Modern Warfare Remastered
Spawns and random lobbies inject per-match noise
Counter-Strike: Global Offensive
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Counter-Strike: Global Offensive leans a little harder on optimization, though the gap is small.
Call of Duty: Modern Warfare Remastered
Map control, loadouts and timing form a learnable meta
Counter-Strike: Global Offensive
Utility lineups, economy, and default strats
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.
full breakdown
Call of Duty: Modern Warfare Remastered →
full breakdown
Counter-Strike: Global Offensive →