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

Execution · Competitive PvP
A soccer sim testing ball-control timing and tactical play.

Execution · Practiced Mastery
Prequel chronicling Noble Team's doomed defence, with armour abilities reshaping multiplayer.
Actua Soccer 3 leans Execution (Competitive PvP); Halo: Reach leans Execution (Practiced Mastery).
Halo: Reach leans a little harder on execution, though the gap is small.
Actua Soccer 3
Ball control, passing and shooting need timing precision
Halo: Reach
DMR precision and armour-ability timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Actua Soccer 3
Human opponents can be read; AI doesn't adapt
Halo: Reach
Multiplayer rewards predicting human movement
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Actua Soccer 3
Minor randomness in ball physics and deflections
Halo: Reach
Loadouts and spawns add small swings
Halo: Reach leans a little harder on optimization, though the gap is small.
Actua Soccer 3
Formations and tactics reward planning
Halo: Reach
Ability matchups and map knowledge
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.