S2 Skill Mod?

I just found this game and I love it, however, the skill progression thing is driving me nuts. You never get to use high level medical/engineering items and the guys who sit on their hands in the base all day are about 50% better then the team I've been using since the start of the game. What gives?

Is there a mod out there that fixes either/both of these things? I did an internet search, and a forum search but I couldn't find anything. I tried quickly looking around the editor but I couldn't figure out how I might edit something like skill progression. If there isn't a mod out there that does this, how might one go about using the editor to do it?