The "For Every Action" series now has a conclusion. Part 3 was published on 6/24. Please give them a try. The highest level across these missions is 31+. It's a Fed series that contains each type of combat and has a few instances of heavy dialogue.
Being a 3 part story, the missions should not exceed 40 minutes per episode. It begins at the Icari System in the Alpha Centauri Sector and remains there throughout the series.
You are sent to investigate the disappearance of a Tellarite Freighter, and as usual, the mission quickly takes a left turn which has you racing against time to save an entire race. Will all of your efforts be enough, when the villain may be the very organization they helped to found? See for yourself.