The life of a soldier was straightforward. The enemy was clearly identifiable, and gunfire was a definite sign of aggression. Along the same lines, allies were easily recognised by their uniforms.
“Vampires may have a society, but it’s anything but civil.”
Immortals tended to get bored and had excess time to plan out elaborate plans for revenge. As a human, if Marc had a problem with someone, they would exchange words. If all else failed, there were duels that resolved any disagreement… permanently…
Disclaimer: This excerpt from Man of War is currently in development. There may be typos, errors, omissions, inconsistencies and so forth.