Mood collector - final consideration

Story's name is "Mood Collector".
In the future, the top headquater of the army always using artificial made of flesh blood and machines, they calling them "senshi(worriers)". For the course of making the most useful and strongest "senshi", they need to take the "mood" from the battlefield, to improve the experiences of "senshi". The winner from the battlefield always having this kind of experience, so must be the third person to take the experience out and save it as data. But there's one kind of people collecting the "mood" as their career. Different from the others, they will kill the winner and save the "mood" database in their bodys, also have been called as "mood collectors"...