I maked a little tuto to help.
It's one of the hardest specialist to tier 1 , but not impossible
Lis' missle took a nerf many months ago, making it even more difficult. Back in June or July, A DICE "Experience Designer" posted on reddit that "I've brought Lis' Mastery criteria up with the team now, thanks for the feedback!". As always, nothing happened. People were asking to at least make it kill or assist in vehicle destory.
Unfortunatley, DICE almost never goes back and adjusts achievement/assignment criteria. Even after making changes to the game causing the assignment to become more difficult than orignially intended. Which is almost always the case because the changes are generally nerfs.
I get the sense that DICE has no internal concept or procedure for this. Once these assignments/achievements are created the work is done and forgotten about.
