There were plenty of Scandinavians that were fighting in the International Brigades, about 500 Swedes, 250 Norwegians and a few 100 Danes and Finns.
On another note, I don't know the name given to this type of hat but i would very much like to see it in the mod since i see it very frequently in photographs and footage.
Durruti wears it in this movie, he also wears it in historical photographs and many other militia men do also. I've seen several of the CNT-FAI rank and file members have them too.
[youtube]http://www.youtube.com/watch?v=XN-5Y8lMUyo[/youtube]