[2020] Please do the Blockbuster storyline

I don't know if you guys just don't know or something but if you do the storyline it tells you how to kill the chrome Husks. You have to use a fire or water weapon, I was in a canny valley mission and I had people shooting the mini boss chrome nature and energy. It's annoying to kill the mini boss four times and not even get it's loot. Thanks for anyone who reads