the only tip i could give post ai borging. if able use reinforced directional glas,s to protect the turrets from atleast ballistics fire. but the fact all engi borges got 3 module crit, is just bad teamplay. one engi borg always should be able to fix others. and while it might be meta strat, as the rd its never wrong to have one emp grenade on you. preferably one you can instantly trigger from inside the bag with a unique phrase, its fairly useful self defence tool against rd threats. like ninja or malf's atleast.