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 · Pure Mechanics
Pure arcade twitch survival against memorisable enemy wave patterns.

Execution · Pure Mechanics
Push-forward arena FPS where movement and aim are the whole game.
Commando leans Execution (Pure Mechanics); DOOM (2016) leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Commando
Dodging bullet streams while shooting is pure twitch
DOOM (2016)
Aim, movement, glory-kill timing all peak.
DOOM (2016) leans a little harder on reads, though the gap is small.
Commando
Soldiers spawn in fixed scripted patterns
DOOM (2016)
Demons scripted attack patterns.
Commando leans a little harder on variance, though the gap is small.
Commando
Minor spawn timing noise across runs
DOOM (2016)
Minimal encounter randomness.
DOOM (2016) leans a little harder on optimization, though the gap is small.
Commando
Grenade conservation and pattern memorisation aid survival
DOOM (2016)
Rune and weapon mod picks meaningful.
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.