Running around on a game like Call of Duty, Battlefield or Counterstrike isn't the same as the real world. After all you get killed you just wait a few seconds for a re-spawn in a game, in the real world, that's your ticket punched.
Having the intention to go out and kill is not something I would promote, most of the problems in the world are caused by just this sort of attitude. The intention of a man on the ground isn't so much about killing people, it's about trying to resolve the issues that certain people, groups or countries cause. This could mean standing guard on a checkpoint, protecting a convoy delivering food or building materials, or even actually being involved in trying to re-engineer destroyed or damaged infrastructure so that the indigenous people of the area can have running water (reducing the risk of diseases and famine)
When people talk of honour in war, it shouldn't be about the bodycount, as far as I'm concerned the higher the number of lives taken the larger the failure.