I understand that I get in to an Appleseed event if I am a "re-enactor in period dress". What exactly does that mean? Are there certain time periods only? Do I have to have actually participated in a re-enactment? Does the time period have to match my gun? Like maybe showing up in a WWII Army or USMC uniform with a Garand? Or in a PLA uniform with a Type 53 SKS? Maybe in a Finnish uniform with a Finn-capture Mosin or SVT-40? Or, God forbid, in a German uniform with Gewehr 43?