Some add-ons are easy, some add-ons are hard.
I see you are new, well, add-on making is complicated.
You gotta model and script and all that. I think the first add-ons that you can easily make are Faces/Decals and Music.
Weapons and Vehicles require all that modelling and scripting. It's too hard.
As for you 3 STOP PICKING ON NEW PEOPLE, IT DOSEN'T REQUIRE INTELLIGANCE IT REQUIRES SKILL. AND YOU USE ALL YOUR SARCASIM TO PICK ON THIS GUY.
Sorry about that, Blockland, especially the forums, are full of teens and adults who like to use sarcasim and like to make it hard...