Warmachine Mk II Official Errata releases
From their website:
In the wake of the final Forces of Warmachine book, Privateer Press is proud to release the first errata document for Warmachine and Hordes Mk II. This document answers some of the common questions about the games’ rules, and it clarifies some of the rules interactions that caused confusion among players. All rules errata and clarifications found within this document are now tournament legal and will be used throughout the upcoming convention season wherever Privateer Press events are held.