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

Execution · Practiced Mastery
A narrative third-person shooter that turns a Dubai rescue mission into a study of war's moral cost.
Betrayer leans Execution (Practiced Mastery); Spec Ops: The Line 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
Spec Ops: The Line
Competent cover shooting is all the game demands
Spec Ops: The Line leans a little harder on reads, though the gap is small.
Betrayer
Ghostly foes patrol on scripts
Spec Ops: The Line
Enemy squads follow fixed scripted assaults
Betrayer leans a little harder on variance, though the gap is small.
Betrayer
Clue locations and ambushes are hidden until found
Spec Ops: The Line
Set-piece encounters play out the same each run
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
Spec Ops: The Line
Cover routes and loadout choices are quickly solved
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.