Nine Lives — Christopher Hill

The war isn't going well. New recruits come off the line as fast as the Collective can engineer them. Very few of those recruits make it through a full tour. But, for Peter Tallow, the odds may just be looking up. Dying nine times is the requirement. After day one disastrous day of training camp and three months in a rejuvenation pod, Peter only has eight more deaths to live through.
Genetically engineered to excel at Remote Operated Vehicle control, Peter stands out as one of the best ROV jocks and is transferred to renowned scout group in time to lead the battle groups latest desperate evacuation.
Follow, as Peter inches his way to humanity and immortality in Nine Lives: 2 of 9. A sci-fi novella