Badia Campbell sabotaged the Midsummer Night when Commander Dmitri Zheng ordered the ship to back out of the trap the rebels had laid for them. She accomplished this by having explosives placed on the fusion core coolant system. She then attempted to seize the bridge by attacking the remaining bridge command crew.
She mortally wounded Commander Zheng and injured Lieutenants Kirtley and Li before then-Lieutenant Keyes intervened. She was able to overpower Keyes due to taking what appeared to be a Rumbledrug prior to her betrayal. Upon her failure to take the entire bridge, Badia Campbell committed suicide with her sidearm.
- Campbell's final vow to Keyes is similar to the one Captain Ponder made to Tartarus, and before that from an Insurrectionist leader to Ponder in Halo: Contact Harvest, and also had a similar meaning. All three exchanged to a hated enemy, made before the person's death.