Hit me up if you have Defiant maps and want to play Team Objective. My gamertag is na7han! I need stupid stockpile achievement!
You just need a spare controller to do this or a friend. Simply go into custom games with a friend, use stockpile on sword base, and steal two flags that he/she put in their base. There is a certain map variant of this made by bungie you can download, I’m not sure who it was had it in their file share though, so you might want to ask around in case anyone has it.