For Sayuki's Birthday event, Lieutenant Uemura appeared as surprise guest for the 1st event, while Sergeant Dambara makes a guest appearance in the 2nd.
Sayuki played a song she composed herself on the guitar, a song she dedicated to her Special Forces Team to tell people how she feels about her fellow Senior Members as well as the new specialists (Dambara and Yanagawa). Wow...I badly need to know the lyrics to that song!!