Hold down the speed up, lasers and Target the closet freighter. As your in range for your bombs to hit, unload everything and crash into it to knock it out. (crashing into it sometimes work.)

Once you see the objective complete, target the Scarabs and hunt em down. If your fast enough, you can kill em all before the missile frigate spawns in. At this point you need to take down the repair ships and Scarabs, ignore everything else. Try to not go far away from the freighter. This will buy you time to get in a good angle for the next part.

Once you see the objective complete again, go close to the cargo on the bottom side and take out the fighters that spawn there. You try any angle you prefer best.