head to head
Grand Theft Auto V asks more than Betrayer, and the gap is reads.

Execution · Practiced Mastery
Slow-weapon stealth shooting wrapped around hidden-clue investigation.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.
Betrayer leans Execution (Practiced Mastery); Grand Theft Auto V leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Betrayer
Slow musket shots make each aimed round count
Grand Theft Auto V
Driving and shooting demand decent inputs.
Grand Theft Auto V leans clearly harder on reads.
Betrayer
Ghostly foes patrol on scripts
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Betrayer leans a little harder on variance, though the gap is small.
Betrayer
Clue locations and ambushes are hidden until found
Grand Theft Auto V
Some mission and lobby randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Betrayer
Mystery-piecing and loadout choices reward methodical play
Grand Theft Auto V
Heists, money loops, builds 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.