I'm trying to play bad company 2 online on Xbox one x but it says I don't have permission ...

Check this link for a possible solution:
https://support.activision.com/articles/en_US/FAQ/Notice-the-current-profile-is-not-allowed-to-play-...

Currently most Backwards Compatible games are having online issues, you can still connect through an Xbox 360 if you still have that as an option.

I bayed battlefield bad company 2 for a few days ago, for playing with my friends and when i press the button too play online and then need too make and acount and i did it a couple of times.

And then is stans:"your gamer profile does not have the correct permissions to access xbox live functionality".

Can some one plz help me??

I have a mic, just send me a message when you want to play. I have alot of games and I'm currently playing Bad Company. I also have 1943 and Bad Company 2 with all the DLC including Vietnam if you have those. I'm online almost every day, unless I'm busy.

I am allowed to play m rated games, I've checked at least 10 times. If I need to be 13 like you said, then why can't I play bad company 2? Read the post again: "your gamer profile does not have the correct permissions to access xbox live functionally" when
I go online to bfbc2