Planning to watch the Foo fighters. Some questions.

Hi guys,

I'm planning to watch the Foo Fighters on August 22. How is the admission done usually? I ask because we plan to get standing tickets and get there early to ensure we can be on the front. According to the ticket site though, entrance will be depending on your ticket number. I'm not even sure why the tickets have seats number even though they're standing. Would they actually stop you from entering if it's not your turn yet?

Also, do scalpers exist outside the concert area? Tickets are sold out and although we're already in talks with a seller, I just wanna have a back up plan just in case it falls through.

This is my first time watching a concert in Korea, so I'd greatly appreciate any tips.

Thank you!