Without OLC GUI is different. worts. i love OLC GUI it is one of the best, a my favorite mod for SH3. SH3 is really great game with NYGM or GWX, but SH3 have a bug with loading game. I have a lots of CTD during loading, so i lost a lots of my career, and i have that. And SH3 have some minor bugs witch i hate. In SH4 i never see this bugs, and what i see now that this game is better for modding.
But now SH4 with addon is a crap.