Dark Elves.

I liked the idea, and it's not that difficult to implement, except for the bats... you really messed that up. They should be weak...
And also... the names are terrible...
You overdid it with the berserkers... what are these "fighters of failures"?
At least call them dark warriors, or gutters (if you really want to), but "survivors in the ravines" is just an awful name... you can't just... "exterminators" or something, but not these unpronounceable names...