Sarek's scout ship

In the alternate reality created by Nero, Sarek's scout ship was Federation scout ship in service to the Vulcans. 

History
In 2259, Ambassador and his followers disguised themselves as crewmembers of the rogue Romulan starship  Narada and raided a  Vulcan science vessel in the 40 Eridani A star system. They stole the red matter recovered by the Vulcan scientists from the former location of planet. The Starfleet starship USS Enterprise arrived to lend aid the science vessel, prompting Sarek's scout ship to escape into Romulan space.

Sarek planned to detonate the red matter on Romulus to take revenge for the destruction of Vulcan in 2258. 

Crew manifest

 * commanding officer:
 * Ambassador (2259)