Vitiate and his sith vs. his Empire

Vitiate and all of his sith are declared enemies by the Empire's military, which has somehow managed to seize control of the government, industrial centers, etc. The sith in question are given basic ships for transportation and start on a small set of secret bases.

Who takes this?

Erdogan coup timing

The Dread Masters might be able to solo if they play their cards right.

The Force users stomp.

Vitiate and the Dark Council is overkill.