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
Landmark scripted FPS following Gordon Freeman through the Black Mesa disaster.

Optimization · Practiced Mastery
Career-driven global flight sim with operations depth.
Half-Life leans Execution (Practiced Mastery); Microsoft Flight Simulator 2024 leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Combat aim and infamous platforming sections
Microsoft Flight Simulator 2024
Aircraft handling, procedure execution
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Marines flank by script, not by modelling you
Microsoft Flight Simulator 2024
No adaptive opponents in solo career
Microsoft Flight Simulator 2024 leans a little harder on variance, though the gap is small.
Half-Life
Set pieces surprise only on first run
Microsoft Flight Simulator 2024
Live weather and emergency events
Microsoft Flight Simulator 2024 leans a little harder on optimization, though the gap is small.
Half-Life
Resource routing and encounter knowledge for speedruns
Microsoft Flight Simulator 2024
Career missions, fleet, route 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.