head to head
ARC Raiders asks more than Arma 2, and the gap is variance.

Execution · Grand Arena
An extraction shooter where scavengers dodge killer machines and rival squads for loot.

Execution · Competitive PvP
A sprawling military simulator where realistic ballistics and planning beat reflexes.
ARC Raiders leans Execution (Grand Arena); Arma 2 leans Execution (Competitive PvP).
ARC Raiders leans a little harder on execution, though the gap is small.
ARC Raiders
Gunplay and movement under machine fire
Arma 2
Ballistics, stance, and positioning over twitch aim
ARC Raiders leans a little harder on reads, though the gap is small.
ARC Raiders
Rival squads ambush, bait, and adapt
Arma 2
Human squads in PvP scenarios adapt
ARC Raiders leans clearly harder on variance.
ARC Raiders
Loot spawns and unknown player positions
Arma 2
Vast terrain hides enemy positions
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
ARC Raiders
Loadout economy and map knowledge compound
Arma 2
Doctrine, loadouts, and mission planning
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.