I'm going to
secondthird the use of Sensor Jammer.
It's not as overtly powerful as Fire Control System, but I tend to prefer tankier builds if I'm running two ships. The ratio of shots taken to shots received is not usually in your favor, and Sensor Jammer provides a consistent improvement to defense, especially with Autothrusters. I like knowing that regardless of what action I take (or lose, if maneuvering goes poorly), I'll always have a Predator reroll + 2nd attempt with 88-B and be able to change a hit with Sensor Jammer from any shots against me.
IG-88 B+C
Predator
Mangler Cannon
Sensor Jammer
Autothrusters
Inertial Dampners
Dammit...this is my exact list that I've been playing with much success of late. I was hoping the internet would never find out about the wonder of sensor jammers. Most games that prevents 5-15 hits against my ships. Only issue I have found it against Soontir and keeping his ass in arc.