Recon Team Echo

Recon Team Echo was a unit of the UNSC Marine Corps contingent aboard the in 2531. It was comprised of one M313 "Elephant" Heavy Recovery Vehicle and two-four man Marine fire teams. Its sister unit was Recon Team India.

The team was woken up by Serina for the liberation of Harvest. It later fought during the Battle of the Flood-controlled Shield World on February 23rd, 2531. Unfortunately early in the battle Echo was overrun and absorbed by the Flood, so when Sergeant Forge searched theirs and India's location he declared both Recon Teams compromised.

Trivia

 * Team Echo are the first known humans to be infected by the Flood.