For 6 bucks, you get a decent selection of buildings that are pretty easy to scale up to 28mm and hollow out for Bolt Action. Considering that this is dirt cheap for files, and waaaaay less than you'd pay for full prints or MDF buildings, this package is kind of a steal. Solid construction makes modification super easy, and no repairs needed on any of the designs to make them work on the larger scale.
And seriously, thank god there's something out there for the Eastern Front that is NOT Stalingrad. I know it's iconic, but man, finding rural Russian stuff is super difficult for some reason!