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
FPS aim welded to a team economy of base-destruction priorities.
Execution · Practiced Mastery
A European football management-and-play simulation.
Command & Conquer: Renegade leans Execution (Practiced Mastery); EuroLeague Football 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.
Command & Conquer: Renegade
FPS aim in infantry and vehicle fights carries the game
EuroLeague Football
passing and shooting require timing precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Command & Conquer: Renegade
Multiplayer base assaults involve predicting human team pushes
EuroLeague Football
human opponents add some adaptive play
EuroLeague Football leans a little harder on variance, though the gap is small.
Command & Conquer: Renegade
Maps and economy rules are fully known
EuroLeague Football
ball physics create minor unpredictability
EuroLeague Football leans a little harder on optimization, though the gap is small.
Command & Conquer: Renegade
Credit economy and building-target priority decide C&C-mode matches
EuroLeague Football
tactics and squad management matter significantly
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.