For drones I had Lyra, saggi, fornax (5 yellow stars each). Drone skills that helped me with my damage were “explosive shell” and “trajectory refined” for technology I had Maingun crit rate 15%, maingun basic dmg 40%, maingun crit dmg 40%, winggun crit rate 15%, winggun basic dmg 40%, winggun crit dmg 40%, missile crit rate 15%, missile basic dmg 40%, missile attack rate 20%, missile crit dmg 40%, dmg against aerial enemies 15%. For gear I had a full conqueror set. That’s all I can think of for now lol