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
A cover-based shooter where precise aim and positioning against human or AI opponents dominates.

Execution · Practiced Mastery
The console FPS landmark that introduced Master Chief and the ring world.
Gears of War 4 leans Execution (Practiced Mastery); Halo: Combat Evolved 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.
Gears of War 4
aim and cover timing decide fights
Halo: Combat Evolved
Aim, grenade timing, and vehicle control
Gears of War 4 leans a little harder on reads, though the gap is small.
Gears of War 4
predicting human opponents in PvP
Halo: Combat Evolved
Multiplayer duels reward reading humans
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Gears of War 4
weapon spawns and drops vary
Halo: Combat Evolved
Covenant AI varies tactics slightly
Gears of War 4 leans a little harder on optimization, though the gap is small.
Gears of War 4
cover positioning and loadouts solvable
Halo: Combat Evolved
Weapon sandbox knowledge and encounter routing
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.