head to head
Neither is simply harder - they are hard in different places. Helldivers 2 demands more variance; The Division 2 demands more reads.

Optimization · Practiced Mastery
Top-tier co-op shooter against bug and bot hordes.

Optimization · Practiced Mastery
A tactical cover shooter where build crafting and teamwork meet real PvP reads in contested Dark Zone spaces.
Helldivers 2 leans Optimization (Practiced Mastery); The Division 2 leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Helldivers 2
Recoil, stratagem inputs, friendly-fire aim
The Division 2
Cover shooting and positioning demand consistent aim under pressure
The Division 2 leans clearly harder on reads.
Helldivers 2
Enemies scripted, no adaptive opponent
The Division 2
Dark Zone and conflict PvP feature real adaptive opponents
Helldivers 2 leans clearly harder on variance.
Helldivers 2
Patrol spawns and modifiers shake missions
The Division 2
Named item drops and talent rolls add meaningful RNG
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Helldivers 2
Loadout and stratagem synergies deep
The Division 2
Skill builds and gear set synergies are extensively theory-crafted
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.