I want to make a weapon which shoots a burst of, lets say, 3 bullets at a rate of 900 RPM, but then it should shoot at 600 RPM if the Actor contiones to shoot. Is it even possible? I mean, the DAKKAGun changes the RPM, so it should be possible.

Should indeed be possible. I haven't tested this code, but i am reasonably certain that it works (if not, chuck me a PM or something). Here's with comments...

And without pesky comments:

My take on it, anyways. There's probably a far easier way to do it, but hey, i'm not magical. :U

Thanks Shook. It worked. Now, how to get that script working...
EDIT: It worked. Thank you, oh dear ANGRY SPACE LAZORS Game Creator and popular Modder of hilarious Mods.