The Super Augmented clones became Plague's heavy hitters but the extra super boosted nano AI was not without its drawbacks. The HAC Troopers were a force to be reckoned with and could turn the tide of battle but they were unstable and the HAC Troopers were prone to erratic behavior and premature degradation. The one time use of each Trooper was a small price to pay for the effectiveness on the battlefield...
I might add the upper arms of Titan to give it more of a bulky look. it would be painted the colour of the underarmour so as not to look like skin. I personally love the steel/red pallette (like the new Curse Dragonfly)
(The Titan mask slips nicely over the Shrapnel helmet to create a sorta battle visor!)
The plain Titan torso doesnt look too bad either! Could be Curse desert or mountain terrain operation forces