same universe but 20 year after the first 3 book of the ixan prophecie serie
** 2017 Dragon Award Finalist for Best Military Scifi *** Heir to one of the leading “Four Horsemen” mercenary companies, Jim Cartwright is having a bad year. Having failed his high school VOWS tests, he's just learned his mother bankrupted Read more

The first completely automated Bolo, designed to operate normally without a man on board, was the landmark XV Model M, which performed remarkably well.
However, the always-present possibility of capture and use of a Bolo by an enemy was a constant source of anxiety to military leaders and, in time, gave rise to the next and final major advance in Bolo technology: the self-directing and self-aware Mark XX Model B Bolo, Tremendous.
But what happens when a self-aware fighting machine decides to go rogue?
Bolos are self-aware tank created by Keith Laumer and featured in novels and short story collection by him and various other authors, rogue bolo is the third and only one available on kindle however if you want the complete collection check goodread here