Talk:Oberon/@comment-27247976-20160302132536/@comment-27279105-20160302150817

Survivals and Interceptions seem to increase Eximus spawn rates over time. Also higher level missions spawn more. Try Draco, Ceres, there are always many people playing it and at wave 4 there's a decent amount of Eximi. I nearly always drop 1-2 Oberon parts when doing 4 waves. If your farming still goes too slow try setting up a farming squad (Desecrating Nekros, Pilfering Hydroid, damage dealer) or if you have one. just bring your Nekros to public games.

Void Survivals for 40+mins also spawn a good amount and you can get some prime parts on the way.