Glad you chose ArmA!
A few guidelines that will help you not get in trouble here are
- Do not double post unless someone hasn't responded in 24 hours
- Do not insult others (obvious)
- Search using the Search Tool
before starting a topic.
About the videos on youtube, don't listen to those BF2 fanatics. They have never played ArmA and think BF is the best game ever(and they are most likely 11 year olds)
If you have any questions feel free to ask me or anyone else here! :)