Starfox
Hero
That reminds me of an incident that happened here in late 90's. A group of LARPers were playing in a forest near a military base, and stumbled upon a lone military police...
One of my early sins was staging a massive Killer game in Stockholm's Old Town back in the early 80s. Effectively this was a LARP before I had ever heard the term. Seems the police got involved (I never met them). Somebody had reported suspicious people sneaking around, so a few of us got stopped and questioned. Apparently to no effect whatsoever - the game was not broken up despite being 20-something 20-year olds running around in the center of the city stalking each other with toy guns. I only heard the story afterwards.
I wonder if you'd get away with that today, even in Sweden.