Whoopsie

[FantasyFreak_UK]

What is classed as a mission critical object for this achievement?

[felixofmars]

Destroy anything that is mission critical, I think I destroyed one on the terminals I had to interact with, or I guess in museum blowing your cover early by shooting.

[FantasyFreak_UK]

I have tried destroying briefcase and helicopter on first level, statues in museum and terminal in complex.
They either don't get destroyed or don't give achievement.

[FantasyFreak_UK]

Right I had another shot at the terminal on complex and it popped. I think it's because I was dying at the same time when I first destroyed it.

[felixofmars]

I think I blew up a terminal in Temple. Other than that, maybe it's a bug?

[FantasyFreak_UK]

Sorted thanks.

[Mr. Popo]

Nice thing is it'll trigger even when the object isn't critical for that particular difficulty, so you don't need to take a mission failure to do it.