For some reason, once someone has obtained a collection log from Doom, any duplicates won't be posted to the clan chat then on. These drops are 90m-450m in range, it should absolutely announce when someone obtains them, dupe or not.
#Add Doom loot notifications to clan chats
odd reef
sudden pivot
Clans use these broadcasts to verify that a member got a drop and award clan points from these values, the points is used to achieve higher ranks in the clan.