Too easy?
With most of them retreating, the resistance we faced as we ventured further into the den was almost nonexistent. Some of them immediately surrendered.
Surrendering would surely give them a higher chance of living.
But do I need them? They were all weak before capturing them, so I told them to dismantle the whole hideout. Or at least, the unused trap, defensive modules, and the device they're using to maintain this space.
They have something called an Energy Regulator which was the one responsible for having a circulating Source Energy within the whole base. However, it's only Level 1 Source Energy and they used crystals to continue providing for a thousand Transcendents.