I can't remember the name of the article for Rushin' guns but it came from one of my brother's old WWII magazines - probably "True Stories from WWII" or something similar.
Squirrel Hunt was based on an article of the same name from a magazine "Heroes of World War Two".
Unfortunately I don't have any of the magazines anymore, which is why my four latest scenarios have all been fictional (although based on real events). Finding articles on small level combats is really hard. Everyone seems to like the "big picture" battles whether it be modern books or magazines from the 50's, 60's and 70's.