These units are better suited for eliminating enemy infantry and are decent for taking out the critical points inside the enemy command ship.
There are usually about five Droid Marines on the map during space battles. They carry powerful ammunition with a rocket launcher, but are not quite as popular as the pilot class because they cannot heal the ships they are piloting. The Droid Marine is the marine class unit for the Confederate Navy, it is only available on space combat modes and are noticeable due to their green markings.