Talk:Denial Bursa/@comment-37.200.21.149-20180720200324/@comment-2600:8800:480:3CF0:8176:62D1:14D7:CDD3-20180819224705

Confirmed. Also, total needed is six. Run Io to wave ten, then extract and run until wave five. Not sure if two more will spawn at wave 15, but faster to clear if you reset the level, imho.