I will allow myself to jump into the matter.
Campaign #4 - Golden Talon at the Bulge.
I believe its broken at least by scenario #2, the attack on two villages.
I believe the campaign was designed years ago, when there was no snow penalty applied (or at least it was not so grave as it is now). Thus scenario #2 is pretty much impossible. You need to score at least marginal victory to proceed. Flags at the end of your attack have much higher values than at the start. However, snow impairs movement badly even on roads. There are 12 turns to complete the mission and I believe one cannot do that in just 12 turns. I was attacking and trashing any resistance really, but several times fimply failed to reach the flags as often my troops move only 1-2 hexes per turn. I also tried to use roads, I am literally rushing suicidically with roads, right onto German SMGs, but at best result I was like ~150 points short from marginal.
I don't think final frags are accessible even mathematically speaking
I believe its worth fixing?