In 2155, Colin and his mother Charis were interviewed by Gannet Brooks on Alpha Centauri III. Colin saw his mother off onto her transport to Earth, then boarded another transport to Delta Pavonis to join the MACO.
In 2156, Idaho took part in MACO landings on Berengaria VII during the Second Battle of Berengaria. During the battle, Idaho conversed with Corporal Selma Guitierrez and the two fought together after their unit was wiped out. Idaho survived the battle with minor injuries. (ENT novel: Beneath the Raptor's Wing)