I Can Do This Alone
This is a one-time challenge. For this challenge, you will have to make sure that when Felicity installs her AI into the robot during the Let’s Build a Robot Army story mission, that she doesn’t kill a single enemy while escorting her. This is quite possibly one of the hardest challenges in the game to do solo, as Felicity can kill enemies quite easily.
There is a little trick to doing this easily in co-op, as the second person can stand in the way of Felicity to block her progress, allowing the other person to take their time in killing the enemies. In fact, it is highly advisable that you do this one in co-op, or you’ll be likely forced to constantly exit the game without saving every single time Felicity gets a kill if doing it solo.
For this challenge, you will have to destroy the legs on Felicity Rampant without destroying any of her three turrets. You will want to avoid weapons that do splash damage, like grenades, possibly shotguns and definitely rocket launchers. Make sure that you aim at her legs during the fight, which shouldn’t be too bad considering Felicity doesn’t move around entirely too much like other bosses in the game.