1. Arma 3 is, at its heart, just a giant sandbox. Bohemia laid the groundwork and you as a player can determine what you want to do inside that sandbox. Sometimes I find myself (even after 3300+ hours) learning new stuff, I then spend the next days trying to understand the new thing and searching the internet about it. I think you should never be afraid to ask others for help, even when you think you know everything about Arma (because you probably don't).