What the crap is wrong with my game!!! lol

[andwii]

so, I installed GWX3, then realized that hey, I hate this! lol so I uninstalled it from my steam and installed it on my other copy for the enigma. Then I install the V15G2 PATCH to the other copy (non steam), now my current campaign is screwed up (crashes to desktop when I load the patrol), and I made another campaign and that one is screwed up, so what gives? Did I somehow miss something I needed to do?

[andwii]

so now I realized, oh hey I love this! played it more while I was reinstalling my Steam version, way better for campagin, but I do also play multiplayer so imma have to keep my steam regular silent hunter. What I still dont get though is how my steam copy was effect by the patch of my other copy (non steam)