head to head
Halo: Combat Evolved asks more than DOOM (2016), and the gap is reads.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.

Execution · Practiced Mastery
The console FPS landmark that introduced Master Chief and the ring world.
DOOM (2016) leans Execution (Pure Mechanics); Halo: Combat Evolved leans Execution (Practiced Mastery).
DOOM (2016) leans a little harder on execution, though the gap is small.
DOOM (2016)
Aim, movement, glory-kill timing all peak.
Halo: Combat Evolved
Aim, grenade timing, and vehicle control
Halo: Combat Evolved leans clearly harder on reads.
DOOM (2016)
Demons scripted attack patterns.
Halo: Combat Evolved
Multiplayer duels reward reading humans
Halo: Combat Evolved leans a little harder on variance, though the gap is small.
DOOM (2016)
Minimal encounter randomness.
Halo: Combat Evolved
Covenant AI varies tactics slightly
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
DOOM (2016)
Rune and weapon mod picks meaningful.
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.