Hi TJ_Phoenix,
RPGmod is alive, kicking and available via the links within
this thread.
Have a look at the documentation and see if it does what you want it to.
Stock FPSC has the potential to do what you want (such as returning to a specific point in a map, and remembering who is dead), but will require a lot of scripting.
My advice would be to break down your desired features into small testable blocks and build the scripts up for each block. You could even create a thread for each feature and see if the community can help. I'd be happy to help out with some things.
Stock FPSC will not let you write to a custom file, but the save game feature does save all the custom variable you define.