head to head
Commandos 3: Destination Berlin asks more than Portal, and the gap is variance.

Optimization · Pure Optimization
Real-time tactics where every mission is a clockwork stealth puzzle to be solved.

Optimization · Pure Optimization
The portal-gun puzzle game whose solutions are everything.
Commandos 3: Destination Berlin leans Optimization (Pure Optimization); Portal leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Commandos 3: Destination Berlin
Tight click timing chaining distractions and kills
Portal
Portal placement timing modest.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Commandos 3: Destination Berlin
Guards follow fixed patrol scripts, never adapt
Portal
No adversary modeling player.
Commandos 3: Destination Berlin leans clearly harder on variance.
Commandos 3: Destination Berlin
Unknown patrols only until scouted, then fully mapped
Portal
Deterministic chambers; no randomness.
Commandos 3: Destination Berlin leans a little harder on optimization, though the gap is small.
Commandos 3: Destination Berlin
Each mission reduces to a solvable sequence puzzle
Portal
Pure puzzle-solving optimization.
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.