That mine you found? Disarmed! Achievement
That mine you found? Disarmed!10
Spot a mine which is later defused by another Engineer
Required Class: Operative
Required Ability: Standard Operative Kit
Ability Unlocked: Rank 1 (automatic from start)
In order to get this you must find a mine layed down by the opposite team. They are highlighted red for this class only. Look at the mine and aim at it. A bar will fill up and it will now be highlighted for the rest of your time. Now an engineer must come over and defuse it. The achievement can be somewhat tricky as it's rare for them to be defused, even by bots.
Note: You cannot be the Engineer that defuses the bomb you spotted. It must be someone else.