I just played the demo, and I don't understand the reaction fire mechanics.
I've been religiously saving enough TUs to always have a snapshot (at least) available at end-of-turn, but enemies can dance around in my line of sight all day and I don't get a reaction shot. Meanwhile, the aliens get a snapshot literally every single time I move within their vision. What causes the reaction shot to activate?
Unrelated, but also, is there any way to change what direction a soldier is facing without having to move? I *really* miss this feature from JA2 and Silent Storm right now.