head to head
ARC Raiders asks more than Ready or Not, and the gap is variance.

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

Execution · Pure Mechanics
Tactical SWAT shooter with lethal TTK.
ARC Raiders leans Execution (Grand Arena); Ready or Not leans Execution (Pure Mechanics).
Ready or Not leans a little harder on execution, though the gap is small.
ARC Raiders
Gunplay and movement under machine fire
Ready or Not
Lethal TTK and recoil punish slop
ARC Raiders leans a little harder on reads, though the gap is small.
ARC Raiders
Rival squads ambush, bait, and adapt
Ready or Not
Mostly scripted suspects, limited reads
ARC Raiders leans clearly harder on variance.
ARC Raiders
Loot spawns and unknown player positions
Ready or Not
Suspect placement and AI behavior varies
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
Ready or Not
Loadouts, breaching tools, team plans
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.