I don't understand this mission at all. Theed isn't a planet...it's the capital city of Naboo - so it should be in Theed, not on. And why would the Great Jedi Purge be taking place on Naboo anyway? Naboo's only direct conflict during the Great Jedi Purge was in 18BBY at the 'Fall of Naboo' when Queen Apailana was caught harboring an isolated and presumably small number of Jedi in direct violation of Order 66. This was carried out by the 501st Legion (aka Vader's Fist) and resulted in the assassination of Apailana and the involved Jedi.
Now, if you were to take artistic liberties and make the simulation a re-enactment of the aforementioned scenario, that would make sense. But a battle simulation where an infantry squad is merely patrolling an area of the city and if they just happen to bump into any Jedi or Republican (not Alliance) groups then they have to kill them.
Even after the 'Fall of Naboo' incident, when Queen Kylantha was instated on the throne, the only conflicts that arose concerning Imperial troops that were stationed on Naboo during this time was with the native Gungans, not Jedi or "rebels". The guerilla-style Gungan conflicts could be another plausible artistic liberty for a simulation.
Now, all I'm saying is...is that the "setting" you've listed doesn't at all match up with canon history. And at the end of the day it's your simulation, but "simulation" is defined as imitation or enactment. So in my humble opinion it would be more solid and engaging if it was historically and canonically correct.