This should be the last version of chapter 1 I upload. After this any changes I make with chapter 1 will come along with the other chapters that I have been working on. Unfortunately no guarantees on when the next chapter will come out, but be assured that it's in the works.
Most of the changes are seen in the upstairs area. The first encounter is completely new and various scripted sequences work better.
Kudos to Richard_Nixon for pointing out a bug that would let you skip disabling the shield wall on the combine bridge.