Titan was a member of a rogue team of super-humans under the auspice of John Lynch. Apparently, Lynch wanted to sell the idea of a super-powered personal guard for an African dictator, but his plans were aborted by the Suicide Squad.
Titan went against Deathshot and Amaze, managing to subdue them both. However, he was not invulnerable enough to avoid a kick to one of his most vulnerable body parts. He was then apparently killed along with Lynch by a drone bomb squad.