Welcome @ahab.
I’m a newbie as well, but the guys here have really made me feel welcome and this is now the only place I go to for sims, giggles and general chat.
I also struggled with the mission editor at first. Due to my internet connection (lag) I can’t play multiplayer and ended up scripting simple missions for single player AG and AA practice. Youtube really helped here, a bit old now but a good one to get you started is
I see you have already found the Chuck’s Guides… that guy is my hero 