@EmiSalgari You can use the operations dummy in the guild Rishi stronghold. You can buy the 3 mil health modulator and the shattered armor modifier from the droid next to the terminal that you use to spawn the dummy. They are not very expensive, if I recall. Link below to show location:
Someone else may have a link to a current Starparse guide. I set it up a while ago and don't recall the steps, honestly.
You won't be able to do ops without a sub, unfortunately.