A mini-mod for the CIS side, which I put together in a few minutes, back at the end of March. I'm sharing it due to a request I received (I thought it was not polished enough to share it). Online-compatible.
Just a little mod which replaces the Super Battle Droid model with a B-1 Battle Droid and the Magnaguard model with a Super Battle Droid. The mod was put together rather quickly, so it's far from perfect - the names of these units weren't changed and the way they appear on the Galactic Conquest screen is totally messed up.
I did not change the unit stats because I wanted this mod to be online-compatible. If you want something that is more lore-accurate, check out Kiprobin's "CIS B1 Side mod", which you can find here: Moddb.com