I cant Play as Rebels In BI

I cant play as Rebels In BI i even tried the editing but it didnt work!!!

Look up how to make unplayable factions in BI playable in one of the many threads on the topic here, and apply that to the rebel faction.

Try the scriptorium for instance.

Here is something that might help.

https://forums.totalwar.org/vb/showthread.php?t=57678

but there is of course another way : Richard's Rebel Commander mod