Board Thread:Warhammer 40k General Discussion/@comment-25618639-20150112024430/@comment-26859246-20150904144630

True enough

If Horus had not changed Russ's orders the Wolves would not have launched the attack on Prospero and nearly wipe the thousands sons out.

If they had not Magnus may have stayed loyal and the Thousand sons would have been useful against the Word Bearers