I like the concept behind Metal Gear Ac!d but man that game's UX is ROUGH.
A tactical game needs to have a quick responsive UI so you can preview all your options really fast and it also needs to convey all the information you need in a very concise way. Metal Gear Ac!d menus are clunky and I'm constantly scanning the field with the free camera to see where the guards are and which direction they're looking. The game struggles with both of these things.