Massacre
On the flagship, Tiberus slaughtered the Tyranids. He attacked at a speed that the Terminators did not have. The Chapter Master turned into a whirlwind of destruction. Wherever he went, even the Tyranids were slaughtered. After he killed all the Zergs that rushed in, he ordered the Librarian to stay where he was, and he rushed into the landing alien landing chamber to destroy the source. If anyone else said this to the Librarian, he would raise objections, but for the Chapter Master Tiberus, he just waited quietly where he was and destroyed the remaining Tyranids that escaped.
