So far, I haven't seen any missions were you fight The Wild or the Nomads... Which is kind of odd.
Let's be honest, The Wild and the Nomads are, technically speaking, the enemy of everyone in the entire Sirius Sector. The Nomads even more than The Wild. Yet, there are no Missions for you where you can fight them?
It makes little sense... And I find it odd that players of these factions would whine about their NPC's being farmed, as suggested in another reply on this topic.
I did a lot of farming on singleplayer myself, just for the heck of it, so its not that preventing missions would simply erase the subject.
Besides, I don't think players of an Outcast Faction would whine about other players shooting Outcast NPC's down in Missions. :-P