The expedition started in 2555 after the activation of the Halo Array due to 000 Tragic Solitude. In 2557 a team of scientists travelled through the portal on the ship Eden Rising to the Ark. Their goal was to research Sentinels and activate a dormant Retriever. In February 2558 they founded the Henry Lamb Research Outpost.
After the closing of the portal the Banished arrived and they razed the research facility to the ground. The facility was later discovered by Red Team, soon after they found Isabel. Isabel joined Captain Cutter and the rest of the crew of the UNSC Spirit of Fire in their fight against the Banished.
- Halo Wars 2 (First appearance)