Operate Heavy Machinery (Call of Cthulhu 7th Edition)

Quick answer

A percentile skill rating (0–100) you roll under on d100.

Definition

Using heavy equipment (cranes, bulldozers, industrial tools) without causing disaster.

How to use it
  • This is your Operate Heavy Machinery rating (0–100).
  • When you attempt it, you typically roll d100 and succeed if you roll equal to or under your rating.
Common mistake: Thinking high rolls are good — CoC skills are usually roll-under.
Example: I run the crane without wrecking the place with Operate Heavy Machinery.
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