Hmm I might have put auxiliary pioneer under MS especially as now half the cong can be called auxiliary pioneers just by writing 30 hours on their reports.
And missionary is in the right place if you're referring to the 'special' few who got selected for Gilead but self-assigned 'need-greaters' would come in just above regular pioneers (I know a few who've gone to serve where the need is nicer and actually call themselves missionaries but no one thinks they're anything special.)
Great chart, I think every study should be given one :)