Pavonis Interactive Forums

Could you make it so that breaking glass caused a loud sound and put enemies in yellow alert, but didn't break concealment?

Well that is kinda what concealment is. It isn't that your soldiers are using magic to hide themselves, it is that the Advent are on low alert and not actually looking for you all that hard, because they don't expect to see you there. Going on Yellow Alert basically means they are watching for you, so that bit of low cover that hides you from their sight when they aren't looking for you isn't gonna do much to hide your presence when they are.
The only time this is different is for stealth specialists, Shinobi & certain Sharpshooters. That's why it takes a perk.

While I am okay with breaking glass resulting in breaking stealth, it seems odd that Advent patrols break glass all the time while moving around. If shattering glass means trouble, you would expect peacekeeping forces to avoid doing that unless in a hostile engagement. I understand that this was already an issue in Vanilla X2, but the lunchboxes - sorry, advent patrol drones - just make it even more common, as they frequently enter tall buildings through second story windows. Is there any plan to adjust patrol pathing?

Open window should be an option