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Extremely basic laser tag setup?

I'm looking into building a cheap, easy to build, no frills (score, shot counter, reload, etc) laser tag setup. All I'm looking for are: - a modulated 40khz IR emitter, with a muzzle flash LED - shot sound (any easy way to do this with a piezo buzzer, or other really easy way?) - a receiver that sends the signal to a piezo buzzer connected to your ear I'm not gonna go for milestag, because it's too expensive to make my goal of 8 guns with, and I don't have the skills to make it (or time), but I will use its general emitter and receiver setup, just no fancy microcontroller. All I want is a "point and shoot you got me". I AM looking for a long range, though, equal to milestag guns, and for that I'm using its modulated emitter and receiver setup (to avoid sun interference... am I right?). So far I've seen this and this as for attempts at making something old school like this, but as electronic-circuitry inadept as I am, I can't put everything together easily without some help. I've included a photo of my schematic, created with the help of the above links and modified/simplified forms of the milestag sensor... please help with corrections. My primary questions are: - how do I add a sound output to the emitter? A beep is acceptable, but if there's an easy way to add a real shot sound, I'd go for that. - how do I limit the pulse to a short, like 0.25 second time period (I realize this was answered in one of the above links, but I need a circuit diagram or more noobproof explanation for it), then stop the beam? - how would I ground the LED (Vishay tsal 6100) and a non-ultrabright, red LED (the emitter output) in the emitter schematic (left)? Do I need resistors before the ground? - how would I add the piezo buzzer to the output in the receiver schematic? I'm using a Mouser part #  539-PT2130FPQ, in case there are resistors i should know to add. - do I ground the #1 terminals on the 3 terminal 40 khz receiver/demodulator? Originally, they would have been linked to the "data" wire on the milestag module. Please help a budding DIY electronics enthusiast out?

Question by MadBricoleur