Sorry for the week-late response, I didn't see that it updated until now. In terms of initiation, an extraction-based mission could be fun though, that's the only idea I have so far - the team's sent out into the dessert help a group of refugees or something along those lines that have been displaced back to civilization? Get to have fun in the wilds of Vacuo alongside all the dangers that harbor there.
And Erza's team leader by such an astounding amount, pfft.