head to head
Unturned asks more than Guild Wars 2, and the gap is variance.

Optimization · Practiced Mastery
Active dodge-heavy combat with a deep build system, tested against both scripted content and human opponents.

Optimization · Practiced Mastery
A blocky free-to-play zombie survival sandbox mixing scavenging, basebuilding, and PvP.
Guild Wars 2 leans Optimization (Practiced Mastery); Unturned leans Optimization (Practiced Mastery).
Guild Wars 2 leans a little harder on execution, though the gap is small.
Guild Wars 2
Dodge timing and active combat define moment-to-moment play
Unturned
Gunfights and driving reward aim and control
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Guild Wars 2
WvW and structured PvP feature real adaptive opponents
Unturned
Human raiders and ambushes on PvP servers
Unturned leans clearly harder on variance.
Guild Wars 2
Loot RNG is present but secondary to skill expression
Unturned
Loot spawns and unknown player positions
Guild Wars 2 leans a little harder on optimization, though the gap is small.
Guild Wars 2
Build crafting and rotation theory-crafting reward deep analysis
Unturned
Base building, loot routes, and crafting economy
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.