Hidden Achievement Sidearm Savant bugged ?

Sidearm savant / Complete Night Raid using only pistol , knives or gadgets .
I did those dint get achievement , giving your squad to attack x enemies make's it not count ? redid it again on EZ 1 pistol shot on the execute squad , knife only no throwing knives,, no squad engage order used and rpg only for chopper still no achievement ...