Denied 1:
As you are a EC, you are unable to steal a Republic Ship. It doesn't make any sense at all for you to know how to fly it. This could lie under a warn for FailRP.
2:
Just because you have a ship, you doesn't mean you ram into another transport ship and kill lots of clones, kind of common sense. Imagine you are on the other side of the situation and a random ship kills you. This could go under Mass VDM.
Finally, just because it isn't stated in the rules, it doesn't mean you can get away with stupidity.