How can I make a rifle fire in bursts? I currently just have a three-shot magazine with a high fire rate and a quick reload, but it gets bothersome to keep clicking.
Can I have infinite ammo, but somehow make a pause between every three shots?
Can I make one bullet somehow create three one after the other and replay the sound?

You are using a 3-round magazine and a high rate of fire, right? Did you set the 'FullAuto' variable to 1? if it is zero, then it's semi-auto, while 1 means it's fully automatic.

For infinite ammo, you can set 'RoundCount' to -1. As for a pause between bursts, I wouldn't know.

For a 3-round burst, you could set the 'ParticleCount' to 3, which is found under the round's settings, although I doubt it would give you the desired effect. As for the sound, use a simple sounds edit program like Audacity to give he effect you want. This is assuming you use this method.

For a 3-round burst fire rifle, it's better to just use a 3-round magazine that isn't discardable (set the 'Discardable' variable to 0, found under the magazine's, settings), because it looks silly if the magazine falls out after 3 rounds.

You could do it by completely controlling fire via Lua, if you know how to do that.

Do it like the M90 Shotgun.

Or you could just add a null tracer round and set RTTRatio to 3. Sure, the time between bursts would be kinda short, but it's better than nothing.

Edit: Here's a quick mod I made with a working script.

Edit2: Now here's one that actually works:

@cavecricket48

i tried to use that, fires 3 flashes but no bullets, how to fix??