MACO personnel The following is a list of Military Assault Command Operations ( MACO ) personnel . Unnamed personnel . Combat training MACO . This MACO arranged for combat training between MACOs and on - board Starfleet officers in 2153 . He was the opponent of Travis Mayweather and used excessive force during their match . Their fight was part of the accusation , Lieutenant Malcolm Reed later used to discredit Major Hayes . ( ) Defense force MACO . This MACO , seen with S . Money , attempted to stop a Klingon - augment boarding party from uploading a virus into Enterprise computers in 2154 . ( ) Delegation guard . This MACO was part of the team which guarded Tellarite ambassadors on board " Enterprise " in 2154 . He guarded the quarters door and later arrested the Andorian s after they tried to murder the Tellarite ambassador s . ( ) MACO ( 2153 - 2154 ) . This MACO served aboard " Enterprise " between 2153 and 2154 . He and R . Azar stood guard in cargo bay 2 while Captain Archer attempted to ruse information from Degra in a mock simulation . When Degra discovered the ruse , he boarded the simulator after Degra attacked the captain , and escorted the prisoner back to the brig . ( ) He served as guard for Arik Soong while he was on " Enterprise " in 2153 . ( ) Along , W . Woods , and another MACO , he welcomed the Tellarite ambassador s aboard " Enterprise " . ( ) In 2154 , he was one of the MACOs who guarded the Orion slave girl s Maras , D ' Nesh , and Navaar and was affected by their hypnotic abilities . ( ) MACO private ( 2154 ) . This MACO private was part of the group of MACO who defended " Enterprise " from the Klingon Augment boarding party in 2154 . ( ) Raiding party member ( 2154 ) . This MACO was part of the raiding party led by Captain Jonathan Archer in 2154 , which boarded the Illyrian starship to rob technology and supplies . The team was attacked by the Illyrian soldiers but the mission became successful . This MACO was part of the last three officers who transported back to " Enterprise " . ( ) Sickbay guard . This MACO guarded the sickbay where Talas was treated after Naarg shot at her . He watched the last conversation between Talas and Shran , moments before she died in his arms . ( ) " Ushaan " guard . This MACO guarded Arik Soong during his arrival on " Enterprise " and escorted him to the brig . He was also on duty when the augments boarded the ship and rescued Soong . ( ) Later that year he served as guard during the " Ushaan " between Commander Shran and Captain Archer aboard " Enterprise " . ( ) Young MACO . This MACO was assigned to " Enterprise " during the Xindi mission in 2153 . In 2153 , he was part of S . Money ' s MACO team which was sent to welcome the Xindi - Reptilian boarding party near an airlock . When the airlock was blown off , the team opened fire but had to withdraw . ( ) When Captain Archer was under the influence of Xindi - Insectoid s , he was working in a shuttle bay and shot unconscious by the senior staff who tried to retake " Enterprise " . Later , he served at the tactical station on the bridge Hayes gave him a nod . He then moved toward the science station but was not there yet , having reached a position just outside the port turbolift doorway , when four Starfleet officers , including T ' Pol and Malcolm Reed , invaded the bridge . He was shot unconscious again , this time by T ' Pol . ( ) Appendices . Background information . Almost all of the MACOs were portrayed by stunt performers or actors with a stage combat background or experiences . Due to the re - use of costumes and name tags , several performers portrayed one character , for example E . Hamboyan , who was played by at least three actors . Apocrypha . The complement of MACO on board " Enterprise " during the Xindi crisis is given as 36 in the novel " Last Full Measure " . Additional MACO named in this novel are Corporal Selma Guitierrez , Corporal McCammon , Corporal Meredith Peruzzi , and Private Colin Eby .