In T182399#2634295, @dedmen wrote:

Steam should be downloading the mods. Look for errors inside your steam client

I have had this exact same thing happen to me today. I started a game yesterday, I've been going slow with it, stockpiling and such. I also found the bug where backpacks duplicate and make your character warp and maybe that has something to do with it but the first time I got the error on the corrupted save saying not enough memory with 32Gb of RAM is a bit hard to believe to say the least. And my current save is 180Mb, I managed to return to a different one but again now it's corrupted. This is my favorite "game mode" in Arma and it's a shame I can't really play it because the save will be unusable.