system
Given the following post, respond as if you're commenting on Reddit:
human
[Half-Life] Why is Freeman so good?

Freeman is just one man. How is he able to disrupt so much of the combine. the same empire that conquered the planet? I do realize it's what g man says about being in the right place in the right time. But even with the help of the vorties and the resistance it seems like an impossible task.
gpt
Scientifically speaking, he's a statistical outlier among humanity. Same as Adrian Shepherd or Barney. If successful alien kills are plotted on a bellcurve, with billions of data points you're guaranteed to eventually get a data point somewhere far, far off to the right. And, funny enough, the Combine are all about *avoiding* statistical outliers in their cyborgs and soldiers.

Practically speaking, he just had the right combination of physical stamina, intelligence, reflexes, hand-eye coordination, and willpower. Also, you're forgetting that the G-Man (a nigh-omniscient being) constantly meddled with his environment to ensure his success.