[TrianguloY]

For me at least, the answer is very easy: play the game without changing the settings. If you repeatedly turn the wrong direction, switch.

The camera should feel natural, and you should be able to do it without thinking. So just let your subconscious pick.

[ash_091]

IIRC Halo had a neat system for setting inversion like this.

Instead of asking the player "do you want inversion or not", it instructed the player "look up" and observed their input.

[rawling]

Yup, 3 minutes into this video: https://youtu.be/JvEJ6VmCR4g

(Halo 3 is the first one I played so I don't know if they did it before this one)

[Arrowmaster]

I'm pretty sure it was done on the first one, Halo CE for the original Xbox. The last times I've played it have been coop in the MCC though which skips that part.

[bigstrat2003]

Yes, it goes all the way back to the original game. Very nice bit of game design.

[lucb1e]

Isn't that what everyone does?