As I'm not fluent, and as there is some slang in the book, a dictionary is quite helpful for some parts. Obviously if you didn't know much Spanish, you'd be quicker typing it in a free translation service and getting a response.
The bar attacked was where Athletic, Osasuna, Real Sociedad and Celta fans would meet before games with Madrid, according to Madrid. Vallecano fans tend to fly the red, yellow and purple flags of the 2nd republic at their games.
Interestingly Madrid himself claims he cut his teeth in the undercover game by infiltrating some Castillian Seperatists

called Izquierda Castellana. I think the time of travel is the greatest hinderence although, football fans just don't tend to travel in large groups, even across town. Check out the attendance for Espanyol - Barca on saturday.
I remember Super Hincha from its fanzine days. That was an eejit fest of a mag. Hilarious though. I did notice a contributor I knew who lived in Germany (a Real fan I met at euro88 who I got a ticket for the Spain game in 1989 in Dublin). In doing a description of the Fortuna Dusseldorf firm who he hung out with he was asked to describe the other German gangs. St Pauli fans were to him a bunch of hippies.

I see Super Hincha in the days of the internet now has a forum where they all can kick off with each other. Check out how you can build yourself a
Millwall brick 
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