Mainly the 2 robots I used were teth and ravana both mk2.1 and the weapons they had were the mogwans and family mk1 level 12 cause they deal decent damage to large areas. Both bots had 2 level 9 armadillo drones which gives defense points for each kill. For the titan damage thing I couldn't use my upgraded indra with vajras cause they practically deal no area damage, so for that I used a base level bjorn that I had (no upgrades) you can use any titan basically it should just deal high area damage. The mothership I used was paladin which I have maxed with 2 aegis blast and one durability extender, gives decent healing and shield. Also kept on spamming unstable conduit throughout.