This achievement is obtainable on Mission 11. There isn't really a specific point of the mission that you need to look for, it's possible throughout most of it.
The entire mission consists of your squadron needing to scan cores to then shoot when enemy Corvettes / Flagship are close to them to cause major damage.
You will more than likely obtain this achievement naturally throughout the level, as fighters are all over the place in the debris field and will get caught in the blast.
If you are struggling however, I found that positioning yourself in range of the front-most core to the Starhawk & convoy at the beginning of the mission (when the first wave of fighters are on approach), the first 3/4 fighters will fly directly past it, and you should definitely get one in the blast.