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

Execution · Competitive PvP
A sprawling military simulator where realistic ballistics and planning beat reflexes.

Execution · Competitive PvP
Supercell's snappy top-down team brawler built around three-minute objective fights.
Arma 2 leans Execution (Competitive PvP); Brawl Stars 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.
Arma 2
Ballistics, stance, and positioning over twitch aim
Brawl Stars
Aim, dodging, and ability timing in real time
Brawl Stars leans a little harder on reads, though the gap is small.
Arma 2
Human squads in PvP scenarios adapt
Brawl Stars
Human teams rotate, bait supers, and adapt
Arma 2 leans a little harder on variance, though the gap is small.
Arma 2
Vast terrain hides enemy positions
Brawl Stars
Bush ambushes and power-cube spawns hide information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Arma 2
Doctrine, loadouts, and mission planning
Brawl Stars
Brawler matchups and map strategy are learnable
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.