Recon has been released to everyone via the vidmasters challenge, go complete the tasks and you will be able to wear recon in Halo 3.
When I played this, I literally didn't have a tactic to Halo 3. No big deal though, it's just a game, right?
1/23/12 : uhhhhhhh this is so dead now haha oh well :)
BUNGIE WEEKLY UPDATE
http://www.bungie.net/News/content.aspx?type=topnews&link=BWU071009
