You Can Call Me Phronk
I've been playing ArmA for over four years and have over 4500 hours invested in ArmA 3. Most of that time has been spent playing cooperative missions and building missions in the editor. Sometimes it's also fun to just hop in the editor and practice flying!
My enjoyment primarily comes from the cooperative multiplayer experience in ArmA (Players vs AI) because it's something no other game has been able to deliver properly, especially when using radio communication mods.
Helpful ArmA 3 Editor Tutorials
If you're still learning about building your own missions or want to get into it, check out my YouTube channel; it serves as a resource for quick instructional videos pertaining to mission editing and scripting.