So I'm currently going for the "Foxiest of the Hounds" achievement and I need to know whether or not the "!" when it goes red means that I've caused an alarm and need to reload.
I'm confused about this because it usually goes to a yellow "?" icon but stay visible long enough it goes to a red "!" but they don't go hostile.
A couple of times I've seen brackets around the red "!" meaning they're probably calling in reinforcements or sending out a call to sound the alarm, but this doesn't always happen.