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
Futuristic large-scale Battlefield where teams besiege flying Titan carriers.

Execution · Competitive PvP
Gunplay and predicting human squads across large-scale and extraction modes.
Battlefield 2142 leans Execution (Competitive PvP); Delta Force leans Execution (Competitive PvP).
Delta Force leans a little harder on execution, though the gap is small.
Battlefield 2142
Gunplay, piloting, and Titan boarding need solid mechanics
Delta Force
Gunfights and recoil control decide most engagements
Delta Force leans a little harder on reads, though the gap is small.
Battlefield 2142
64-player human teams shift fronts and Titan assaults
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 2142
Large maps hide flanks; battle chaos obscures information
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 2142
Unlock paths, squad roles, and Titan strategy reward planning
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.