Welcome back
Yes, Sober megamod is one of the best around and can be adjusted to your liking.
You also can have a look at my 3rd list running great here
http://www.subsim.com/radioroom/show...78&postcount=1
About Maksman tool, i don't know what it is...
About the campaign, you still have objectives, but you can keep on going even if you failed now.
OH II Full campaign is very well done, and an interesting one
Hundred times better than stock one.
Don't hesitate to ask for help installing all those mods, because they are quite numerous!