User blog comment:NecrusIV/Average age of a Space Marine/@comment-70.192.195.53-20140901144427/@comment-70.192.195.53-20140901145517

Note: I said FANON. Because a fanon marine shouldn't really be as epic as a canon marine in the special character section of the codex. Not fluff wise, not like Papa Smurf or Lysander's long history of combat. Be modest, and you can still have a respectable bad ass leading your army.

For example, my main commander uses Logan's rules, but he doesn't have Logan's history of awesomeness. I don't have him claim near the amount of fame and glory Logan has. But to represent this commander of mine being a bad ass of my chapter, I have him use Logan's rules. My commander is the First Captain and currently around 300 years old.

Again, no marine "gets too old". Marines inside of a dread got placed their because they fell in combat and were deemed bad ass enough to be placed in the holy shrine that is a dread. They then usually live even longer because they are used less frequently and are typically brought out of stasis for only important or large battles. The dread itself does not keep them from "dying of old age". It's just the manner in which the dread is used in combat that makes them last longer, as they are used more sparingly. THEY ARE HOLY RELICS FOR CRYING OUT LOUD!