A conversion for 'Empire at War: Forces of Corruption', Return of the Clones is based on a what-if senario - what if parts of the old Republic had survived Order 66, leading to a civil war not between the Empire and Rebellion, but between the Empire and Republic. In order to make things a little more realistic, the Zann Consortium is also now equipped with old, abandoned Confederacy equipment.
This patch corrects the issue with Phase 2 Clone Commanders walking around in the 'jesus' pose with no animations. While it says 'patch 2', 'patch 1' was only required for the RotC v4.2 on filefront. If you downloaded the file from moddb, you only need patch 2.