as some of you may have noticed, Cryptic is given us a Shuttle Weekend. As far as I can tell from experiences made yesterday, it IS fun.
Cryptic has introduced special 20 Player Versions of Federation / Klingon Fleet Alert, Storming the Spire and the No Win Scenario. While FFA and KFA are faction-specific, the other one are cross-factional.
Each of these Events offer a choice of Marks. If you need Undine Marks badly, then do these Shuttle missions. For the duration of the Event, the rewards are doubled (118 Marks for a succesfull FFA / KFA).
In addition, for the duration of the Shuttle Event, there is a sale on the Lobi Store regarding Space Gear including the Small Craft. Use this opportunity!