In Mission 15, the Kuun-Lan attempts to stop the Bentusi from jumping to another galaxy via a slipgate.
Somtaaw have worked out that the Beast is after a new prototype defense station that the Republicans are building, codenamed "Nomad Moon". However, they can't do anything about the Beast with their Siege Cannon irreparable. They notice that it derives from basic Bentusi technology, so they ask them for help, but they refuse to help, because of Somtaaw's refusal to help them back in the Aiowa System. Tactical decides the only way to stop them leaving is to destroy the gate, which only enrages the Bentusi further and they release their own Acolytes: the Super Acolyte, which devastates the Somtaaw Fleet. Eventually, Somtaaw changes the Bentusi's minds and they help to repair the Siege Cannon
Dock all fighters and workers before the Bentusi attack or they'll be destroyed. It also might be a good idea to group your ships for better defence, but don't destroy any Bentusi Motherships!
- Strangely, Tactical or Command will not tell you about the four researches that appear here: Advanced Fighter Drive, Advanced Frigate Drive, Armour Level 3 and Force Field Leve 3.
http://www.youtube.com/watch?v=SC1SLS_UT1s - Mission 15 Cutscene
http://www.youtube.com/watch?v=vRAgq6tvWBs - Mission 15