There seems to be guides for everyone apart from the Senate. Im of the understanding that this faction can be unlocked. Has anyone played as the Senate?
The senate has a number of bugs, not the least the fact that there are no senate missions for anyone if you play as the senate, so the romans find it hard to expand.

Some people over at the Colosseum have suggested a "Rebels/Slaves" thread to discuss the unique challenges this (modded) faction presents. Any ideas?