Halo 3 Recon Armor

Alright, I know it is a little late in the game but I am working on earning my Recon helmet for Halo 3, I just need Endure, Annual, and Deja Vu. However, I went on bungies website to check my states but the spot to unlock Recon is gone. Has that ship sailed or can we still unlock it and if so how?

Thanks

Spec

Ha nope it’s still there:)
Go to Bungie.net and sign in
then on the top right you’ll see a Halo 3 symbol beside your name.
Click it. It’ll have 4/7 achievement symbols lit up:)