[Hok]

I try to buy different types of fighters.

Terran Fighters are good to attack from a longer range, but Abbidon fighters are better for their Shield Piercing ability (they have one Phased Polaron Beam).

Phoeinx-D is saying right, you have to keep enemy PD busy otherwise your fighters get destroyed quickly.

Onother thing I often do is to recall all fighters after a few attacks, so they are back to full streght (for fighters the Launch Bay is like the Spacedock for a ship).

Last thing is that I launch fighters after beating up the enemy for some time so as to lower the shields.