I ran against a TIE/d list running ruthlessness, which gave me some ideas, as it was positively deadly on the receiving end (I had B-wings, so two hits were guaranteed each turn). Without further ado, here's my take on TIE/d Defenders:
2 x Glaive Squadron Pilot (34)
Ruthlessness (30
Tractor Beam (1)
TIE/d (0)
Sigma Squadron Pilot (16)
Fleet Officer (3)
Systems Officer (2)
Total: 97 points.
Having just checked the new FAQ, ruthlessness triggers after EACH defender attack, making for 4 ruthlessness attacks per turn. Against swarms this can be an unbelievable mount of directed damage; a dead whisper per turn, for example. And against anything with 2 or less agility can be utterly brutal. The Sigma pilot is there for support in case the defenders are blocked so have to make a tactical bump/action. The shuttle hands out two focus and a target lock, all going well. There weren't really enough points for a Lambda, so I figured a bomber makes a nice low-threat support ship.
Other than that its the usual Defender shenanigans.
My question is this: could ruthlessness be better than PTL or predator, or is it still in the "gimmick" category of defender upgrades?