I don't have these two ships yet, but was wondering about this set up:
IG-88B (36)
Determination (1)
Fire-Control System (2)
Heavy Laser Cannon (7)
Burnout SLAM (1)
Autothrusters (2)
IG-2000 (0)
IG-88C (36)
Expert Handling (2)
Advanced Sensors (3)
Autoblaster (5)
Tractor Beam (1)
Dead Man's Switch (2)
Anti-Pursuit Lasers (2)
IG-2000 (0)
Total: 100
View in Yet Another Squad Builder
Basic idea is to keep "B" at range 3, and "C" at range 1