Alright... install this script and to start your webcam simply use the command /Cam
I'll work on the other features you requested over maybe this next week I don't know how busy I'm going to be, so don't expect anything. So for now here is just a basic one to get you going. You can claim all ownership and rights or whatever to this script since it was your idea
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--EDIT--
Haha, what an idiot I am... forgot to upload the script