My memory is fuzzy, but you can ask me questions to kick it around. Maybe something of note will spill out from my time on the project.
I do have notes somewhere of what I wanted to call a "Designer's Cut" for the game which would rebalance some things add in some levels that were cut. Like we had an earlier level where you got the sniper rifle and had to use it in this canyon run. I remember being disappointed Fox Interactive didn't want my help with the add-on pack by the Third Law guys.
If I remember right I also had to push to get the mod material out to you guys, because Monolith was sort of done with working AVP. We didn't even get a release party and were split up into other other teams. Some looked down on the project because it was a franchise even though it made more $$$ than others they were doing at the time.
Here's a fun bit... the image I made to keep track of where the levels were taking place: