head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Practiced Mastery
A PvP-centric MMO where aerial execution and reading opponents in Abyss battles define competitive performance.

Execution · Competitive PvP
A sprawling military simulator where realistic ballistics and planning beat reflexes.
Aion leans Execution (Practiced Mastery); Arma 2 leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Aion
Aerial combat and combo chaining require timing and positioning
Arma 2
Ballistics, stance, and positioning over twitch aim
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Aion
Rifting and Abyss PvP feature real adaptive opponents
Arma 2
Human squads in PvP scenarios adapt
Arma 2 leans a little harder on variance, though the gap is small.
Aion
Enchantment stone RNG is a meaningful hidden-information layer
Arma 2
Vast terrain hides enemy positions
Aion leans a little harder on optimization, though the gap is small.
Aion
Manastones and gear sets have well-known optimal configurations
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.