What I'd like to see are references to the story of Phantasy Star Online 2, especially for imported characters.
Converse with fellow players
It appears now, though I'm not sure if it was from completing an expedition quest for the first time or completing A Case of Murder III that did it. Though it does seem odd that A Case of Murder V is available regardless if the latter is the case.
For the Mission Bingo, one of the requirements is to complete one of Lavere's Client Orders called A Case of Murder IV. However, when viewing Lavere's Client Orders, this one doesn't exist. There's A Case of Murder I through V with no IV in sight. Is there something I'm missing?