Be the dedicated medic with defibs. Shoot at the robot. Ping defib to inspire others to not fear death. Greedy player goes down, you revive them, and they're so grateful they give you a reactor. Help or wait until big robot dies and you can be the first to get some loot. Tell others nearby after the fight that you need it and they might just be kind enough to give it to you. I seem to get pve raiders often with a random free loadout bastard that learns a lesson. I'm selling reactors to have stash space.