: When the dialog box asks for a "Multiplayer ID," simply enter the 16-digit product key provided with your digital or physical copy. Check Windows Security
Located in the confirmation email from retailers like Kinguin or G2A , or accessible via the "Manage" -> "CD Keys" menu in legacy Steam libraries. Ghost Recon Advanced Warfighter Multiplayer Id Key
You can redirect these lookups to your local machine by adding 127.0.0.1 key.gamespy.com and 127.0.0.1 greconawf.available.gamespy.com to your Windows Hosts file . Playing Multiplayer Today : When the dialog box asks for a