How to beat Marnie's Excavatron in Crimson Desert

Depending on which quests you progress, Marnie's Excavatron might be the first proper boss you face in Crimson Desert. This strange machine is being used to mine in the Bleed Bandit-occupied Karin Quarry, and you'll have to defeat it as part of House Roberts' Stolen Quarry quest, which unlocks in Chapter 2.

Luckily, there's one skill gimmick that kind of trivialises this boss, which is good, because otherwise you're going to have to spend your time getting unceremoniously drilled to death.