[quote=gcold]
I thought Coruscant was already invaded at the start of episode 3, and, are Dooku and Grievous dead in our timeline?
[/quote]

Well... the invasion of Coruscant during the Clone Wars was a ploy to kidnap Palpatine in order to evade Mace Windu's investigation. The attack in this RP seems to be a complete takeover of the planet. And, canonically Dooku and Grievous are dead at this point. However, given that we're in an alternate timeline, a lot of things could've turned out differently. It's probably best to wait for the GM's word on this.