Another Galactic Challenge today on JAKKU with Bonuses for Droids.
So i did GG-B1-B2-IG100-3PAC for most feats, didnt feel easy and a bunch RNG involved, it worked for me though!
(Apparantly the easier team to run is GG-B1-IG100-BB8-3PAC)
For the Offense up 20 times feat i got crushed with JKR lead, so switched to JKL lead and it was a walk in the park, had to stall in the end to get off/spread the last offense up (from JKA special).
Might be one of those challenges that need a couple of tries to get the right RNG to finish it. Good luck to you all!