To be honest, I really don't know what you are complaining about, although the GMG freighter/kamome sucks with only 2 adjacent mining turrets, as GMG you have access to the Kusarian freighter (Anki) that has 5 adjacent mining turrets (The only other mining ship in the game with that many adjacent turrets is the Surveyor light fighter). This more than makes up for the low field base drop rate.
The faction has access to an amazing ship and can get decent drop rates using it. After shooting 100 rocks with it I get an average drop of 17.23 He-3 in Okinawa.