head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Competitive PvP
Large-scale shooter execution amid chaos, predicting human squads across evolving battlefields.

Execution · Competitive PvP
Gunplay and predicting human squads across large-scale and extraction modes.
Battlefield 6 leans Execution (Competitive PvP); Delta Force leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 6
Gunskill, movement and vehicle handling lead at every level
Delta Force
Gunfights and recoil control decide most engagements
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 6
64-plus humans adapt positioning and pushes constantly
Delta Force
Predicting human rotations and pushes runs through every mode
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 6
Destruction, spawns and chaotic battles inject randomness
Delta Force
Extraction loot and operator gadget chaos add noise
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield 6
Loadouts, squad roles and objective timing sit underneath
Delta Force
Loadout economy and objective sequencing set the floor
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.