A good reason why I should avoid letting people take those same duties multiple times in a row, then.  I WILL start giving people more acheivements if their XP gets sufficiently behind other players, if they're actively posting, though I might also hit the brakes if you guys are moving towards advanced rank too quickly.  I'm still not *quite* certain what I'm going to do about the possibility of ranking up too fast, but I'll likely just have you take a "legend of the expanse" alternate rank once you hit rank 10, and/or move you guys into an Ascension career.  (Darius might end up taking a Deathwatch specialization)