For those who have not completed Xenoblade Chronicles, this page or section may contain spoilers regarding the plot. Discretion is advised.
The Heavy Machine Depot is a landmark in Xenoblade Chronicles. It is located northeast of the Control Tower and west of the Port Access Pathway in Sword Valley. At this particular landmark Mumkhar - or Metal Face - is faced for the last time. During this fight he is holding a new green spear that can "decompose any life born of Bionis".
After he is defeated, despite missing an arm and having been beaten, he runs at Shulk and Dunban, yelling "Just die!" Shulk then has a vision in which a spiked piece of metal falls from the fortress and impales the Faced Mechon through the chest. Shulk shouts at Mumkhar to stay back but he is ignored, and the vision comes true. The whole depot center falls with Mumkhar pinned to it, his last words as he plummets down shouting "Not like this!"