head to head
Commandos 3: Destination Berlin asks more than Portal 2, 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
A first-person puzzle game where seeing the solution is the whole skill.
Commandos 3: Destination Berlin leans Optimization (Pure Optimization); Portal 2 leans Optimization (Pure Optimization).
Commandos 3: Destination Berlin leans a little harder on execution, though the gap is small.
Commandos 3: Destination Berlin
Tight click timing chaining distractions and kills
Portal 2
Portal placement requires some precision but timing is lenient.
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 2
No opponent; puzzles are static.
Commandos 3: Destination Berlin leans clearly harder on variance.
Commandos 3: Destination Berlin
Unknown patrols only until scouted, then fully mapped
Portal 2
Puzzles are deterministic with no randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Commandos 3: Destination Berlin
Each mission reduces to a solvable sequence puzzle
Portal 2
Solving the puzzle's logic IS the entire game.
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.