head to head
Counter-Strike: Global Offensive asks more than Battlefield Vietnam, and the gap is execution.

Execution · Competitive PvP
Vietnam-era large-scale multiplayer shooter mixing infantry firefights with helicopters and jungle ambushes.

Execution · Competitive PvP
Definitive competitive tactical FPS balancing aim mastery with team strategy.
Battlefield Vietnam leans Execution (Competitive PvP); Counter-Strike: Global Offensive leans Execution (Competitive PvP).
Counter-Strike: Global Offensive leans clearly harder on execution.
Battlefield Vietnam
Gunplay, vehicle handling, and helicopter piloting
Counter-Strike: Global Offensive
Spray control and flick precision at the top
Counter-Strike: Global Offensive leans clearly harder on reads.
Battlefield Vietnam
Human squads flank and contest objectives unpredictably
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.
Battlefield Vietnam
Spawn waves and vehicle availability shuffle fights
Counter-Strike: Global Offensive
Information hidden until contact
Counter-Strike: Global Offensive leans a little harder on optimization, though the gap is small.
Battlefield Vietnam
Map control, loadouts, and ticket-bleed knowledge
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.