cool mechanic but it needs an UI tracker

Are characters set up as androids in the "Upgrades mod" immune to this? If not they should be.

I like the concept but bc of the way there is usually not enough squad members in the first part of the game to do stuff, once this would start making sense it just feels like a shot in the foot. Instead of using a stick, how about using a carrot this time? Remove the fatigue and exchange it for a "well rested" mechanic that grants a buff to units that stay out of missions for a couple of days.

Do they need two days rest after one mission too, or could they be one one day, off the next and be fine?

What if an agent does 1 mission, rest for the other, go on next mission, rest 1 turn and so on ?

Excellent mechanic should have been part of the base game. Well done.

Any way to add an indicator about when a character is fatigued and seding them on a mission will result in a injury? I found that it's rather hard to keep track of all units and their fatigue status, especially in the late game, when I have the max size for the squad. More often than not, I would end up receiving fatigue scars because I couldn't remember I had already done two missions with that guy or gal.

Smart!

Does Spec Ops count has a mission ?