Will I still get experience for a custom campaign?

I would like to try running a campaign where the alarm level doesn't passively increase, so I can try a true stealth run, but I'm at a point in the game where I need to be gaining experience. If I turn off the passive alarm increase, making it a custom game, will I still gain experience?


I've completed two campaigns, one on a "classic" difficulty and a second run on a "custom" one, and I've gained experience on both runs.

My guess would be what you activate/deactivate/change alters an EXP modifier maybe :)