This achievement will be awarded for completing the 13th and final mission of the game "Relic".
There are 2 campaigns to choose from, the 1st is the main campaign which has 13 missions and the 2nd campaign is called "Heroes of the fleet". This cheevo is related to the main campaign and NOT heroes of the fleet.
This is a story related cheevo and therefore cannot be missed.
Mission 13 involves you flying through lots of tunnels until you reach the core which you must destroy OR you can listen to "Control" and complete it an alternative way which includes completing the criteria for the missions upgrade. Fly past the core into a second tunnel and destroy the 3 Limiters and then back to the main core and damage it.
The cheevo will pop during the final cut scene.
Play the game on easy as there is no difficulty related cheevos and a full easy run will take around 6.5hours for the recreational gamer like myself.