Epsilon Weapons Factory - Looking for Info

So I am in the middle of raiding the Epsilon Weapons Factory. It's had plenty of surprises and prior to this attempt I died out of lack of preparation, and thanks to a bug.

I figure I should contribute to the wiki and add this POI, it's pretty big compared to the few POIs I've explored so far (Epsilon Power Station, MS Titan Front, Epsilon Factory)

Here's what I know so far:

- The base is defended externally by about ten ion turrets. They don't seem to want to engage targets further away...

Epsilon Weapons Factory - Looking for Info