Which faction should I raid, to get the grenade launcher?
Phoenix, I think it’s came from main mission, forgot which one.
Raid Research* an Arthron’s body and you’ll get it.
Thanks for the list, but I can`t see out of the list, what is necessary to get the grenade launcher.
Is there a tech tree?
Is an Arthron the only thing necessary?
Arthron autopsy research item is all. Should be available to research after your first encounter with Pandorans.