How to beat the Crimson Nightmare in Crimson Desert

Beating the Crimson Nightmare boss in Crimson Desert is part of House Roberts' faction quest. The count has a bit of a thing for sending you after annoying bosses, since previously you had to head to Karin Quarry and defeat a diving suit-looking robot by the name of Marnie's Excavatron. This time you're going to the Bleed Bandit-infested Fort Perwin to face a seemingly sentient cloud of red gas.

This boss can be extremely annoying if you approach it in the wrong way, or don't grab the item...