head to head
Helldivers 2 asks more than Metal Gear Solid V: The Phantom Pain, and the gap is variance.

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

Optimization · Practiced Mastery
Open-ended stealth sandbox built on base-building and adaptive AI.
Helldivers 2 leans Optimization (Practiced Mastery); Metal Gear Solid V: The Phantom Pain leans Optimization (Practiced Mastery).
Helldivers 2 leans a little harder on execution, though the gap is small.
Helldivers 2
Recoil, stratagem inputs, friendly-fire aim
Metal Gear Solid V: The Phantom Pain
Stealth and shooting inputs both matter.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Helldivers 2
Enemies scripted, no adaptive opponent
Metal Gear Solid V: The Phantom Pain
Guards adapt loadouts across missions, light modeling.
Helldivers 2 leans clearly harder on variance.
Helldivers 2
Patrol spawns and modifiers shake missions
Metal Gear Solid V: The Phantom Pain
Patrols, weather, supply drops randomize runs.
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
Metal Gear Solid V: The Phantom Pain
Mother Base, loadouts, fulton economy deeply solvable.
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.