Yeah, my own suggestions are;<br/><br/>1) They are outcastes from both horde and alliance (so they broke off and thus no longer hold grudge vs opposite faction by now) who are mercenary band who does jobs for various parties/groups.<br/><br/>2) As mentioned were part of parties made from their own faction members but one way or another members in their group got killed and they ran until they met each other in stressful life threatening situation where they had to work together or die.<br/><br/>Place most likely should be neutral town as dragging horde or alliance races to either side faction held cities just asks towns guard get involved and kick them out. Or arrest and placed on dungeons. So goblin towns (like Booty Bay) or neutral ground towns (Shatrath, Dalaran) work. Considering we got mage in party she could had created portal for anywhere capital cities or neutral towns (Dalaran would be top choice) to celebrate.