This pack will NOT be based on the Phantom only. There will be some outdoor maps when you are approaching the Phantom.
Here is a picture of the entrance to terraniux (Bombed out by the Skaarj and left to rot) near the start of the 2nd level, a revisit to Harobed.
You probably won't be able to visit Terraniux, but MAYBE I will use it for a target practice level, where you shoot pupae and other critters that have taken up residence in the wreck, though I will only do this in the underground portion of Terralift.
Here are my plans for the pack.
1 - UMS ship (Kinda like in Xidia where you receive orders, gather some basic equipment, and go to the drop pod)
2 - Redone Harobed village
3 - Half-demolished Dark arena and Mine Enterance
4 - Taridium mine/plant
4 - ISV Phantom's Crash site
5 - ISV Phantom cargo deck (4)
6 - ISV Phantom Administration/Barracks deck (1)
7 - ISV Phantom Lab deck (2)
8 - ISV Phantom Engineering (3)
9 - ???
10 - Escape!
11 - Escape pt. 2
12 - Cutscene/End
That's 12 maps in all.