[5] Eacott enlisted in the Royal Australian Infantry Corps of the Citizens Military Forces in November 1966, and from 1968 to 1972 fulfilled a national service commitment.
[4][1] He was also employed as a soil conservation field officer by the Queensland Department of Primary Industries until commencing training for Anglican ministry in 1980.
[1] From 1996 to 1999 he served as senior chaplain to 1 Division at the Deployable Joint Force Headquarters at Enoggera.
[4] In 1999–2000 Eacott served as Senior Chaplain to the International Force East Timor under Major General Peter Cosgrove,[5] during which time he was involved with the exhumation and reburial of bodies suspected as being victims of crimes against humanity and established and maintained a burial register.
[8] Eacott was appointed as a Member of the Order of Australia (Military Division) in the 2007 Australia Day Honours for "exceptional service and outstanding devotion to duty as Principal Chaplain – Army and Head of Corps, Royal Australian Army Chaplains' Department".