Yeah, you can do tons of stuff. I load weapon stats (ammo, tags, mods) and even animation frames for various actions from text files. I also load mission scripts, including AI objectives, from map profiles. It should be pretty simple to do deaths and kills.
A stat screen shouldn't be too hard, once you have the variables for kills and deaths and such set up. My menu script could do it without any modifications, except an added function for placing the text. You could even make the stat screen pop up when you press a button, and pause the game while it's up.
By the way, I'd be happy to make the scripts for you, if you want. It's either that or I work on my own, which are pretty similar anyway
