These rules look really cool! Very nicely done, cant wait to see the game itself. If I may suggest one more title for the 'Suggested Reading' section: 'Gladiator: Rome's Bloody Spectacle' by Konstantin Nossov (Osprey 2009) is an excellent up to date introduction on the subject matter.
Also thank you for taking the time and doing the research and providing rules in the game for the fact that not all Gladiatorial events were fought to the death.
Very interested in seeing how this develops.