There is some free Live extras if you register on THQ here:
(only available to first 100k)
With this you will unlock the gear pictured here:
Edit: Missions could have used a few more things to add variety and spice the RPG bit up. Like npc's that you can talk too and small sidequests, f.e. escort or rescue missions. Missions get a bit repetitive late in the game, and that's not from doing a lot of combat with few units (which is still great fun), just lack of variety, different missions and maps.