User blog comment:DirgeOfCerberus111/Adeptus Custodes Vs. Grey Knights/@comment-2253300-20110819114042/@comment-1536954-20110819121106

They can be likened to the Australian millitia fighting in New Guinea in WWII. They were only even intended to fight.. in australia, and got smashed by disease and the Japanese.

The Custodes would be the most formidable on Terra