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
The pioneering large-scale WWII shooter built on combined-arms map chaos.

Execution · Competitive PvP
Vietnam-era large-scale multiplayer shooter mixing infantry firefights with helicopters and jungle ambushes.
Battlefield 1942 leans Execution (Competitive PvP); Battlefield Vietnam leans Execution (Competitive PvP).
Battlefield Vietnam leans a little harder on execution, though the gap is small.
Battlefield 1942
Aim, vehicle handling, and leading shots matter.
Battlefield Vietnam
Gunplay, vehicle handling, and helicopter piloting
Battlefield Vietnam leans a little harder on reads, though the gap is small.
Battlefield 1942
Human teams adapt flanks and vehicle pushes.
Battlefield Vietnam
Human squads flank and contest objectives unpredictably
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 1942
64-player chaos and spawns add noise.
Battlefield Vietnam
Spawn waves and vehicle availability shuffle fights
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 1942
Map control and vehicle timing learnable.
Battlefield Vietnam
Map control, loadouts, and ticket-bleed knowledge
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.