Farming the High Keep goblins

[Fammaden]

Its a dungeon type zone, despite being "outdoors" for the purpose of spell restrictions.

Line of sight rules apply, you can only claim the mobs that spawn in line of sight of your claimed camp, everything else is FFA if not part of another camp.

That guy is wrong, or lying about it to get rid of you. A ton of players don't understand the dungeon type vs. outdoor rules.