act 3 – miss. 4 please help

i’m at a wits end at this point in the game…

this is where you have to capture the jump accelerator and usher in the League fleet. i get through most of the mission ok, up untill you have to destroy the LDA generators which maintain the LDA sheild around the L-point. where are these generators? are they supposed to be viable targets?

ive read 2 different walkthroughs and still cant do it. ive shot at just about every square inch of the accelerator, tried to fly through, parked inside before the sheild appears etc. – nothing works i either kill myself or cant find/destroy the generators.

i would appreacite any help
thanks