There are several mentions of the warrior lodges in the Horus Heresy books. According to the books, this helped Lorgar to spread the heresy. From Lexicanums Warrior Lodge Article:
The Warrior Lodges were a group of secret fraternities formed by members of the Space Marine Legions during the Great Crusade. They eventually led to the division of the Legions into factions that facilitated their fall to Chaos and the start of the Horus Heresy. Warrior Lodges were covertly spread by the Word Bearers, who had secretly fallen to Chaos, as a means to subvert the loyalties of each Astartes Legion.
This is an abstract from The First Heretic. I couldn't find the passage yet but will add it when found. I just can't really understand how these lodges helped Lorgar to spread his heresy. Was it simply to undermine the hierarchy or has there been more?