Well it tells me to enter a code into ''soldiers clan tag'' i dont see that options at the battelog...can you guys help me?

https://www.youtube.com/watch?v=rA3bKEwfhlo&list=PL4JhT_MoyW-RVt4_6GctVFCJIVWMWpZD-&index=2

You go on Battlelog, hover over your name which is next to the notification flag and select settings. In the settings you click on "soldier" and there you can change the clantag.