Considering that you can be arrested for playing paintball out of restricted areas in germany, I would avoid this.

"simulated killing" can be banned by communities here, the european rights court found that legal about this 10 years ago (C-36/02). Laserdrome was the game in question back then. The decision goes down to §1 of the german grundgesetz (our constitution), which is the inviolability of human dignity.

While Laserdrome and Paintball is rather commonplace nowadays, often, one of the provisions expected to open such a space is the exclusion of anyone not involved in the game.

I don't want to know how the reaction to people running around town "shooting" at each other will be.