In Call of Duty: Black Ops 3, you can collect decorations or medals. In addition, you can hang a glass case in your living room and store all your Decoration items. The following table shows you what decorations can be found at Black Ops 3 and how you can unlock them.
Master of Arms - Unlock all weapons, camos and attachments freely in the campaign. (5000 XP)
Dedicated to Excellence - Bring all Cyber Core capabilities to the highest possible level. (5000 XP
Armament Superiority - Unlock all weapons, grenades and Cyber Core capabilities. (5000 XP)
Heroic Service - Complete the campaign depend on the degree of "veteran difficulty ". (5000 XP)
Legendary Service - Complete Campaign on "Realistic Difficulty" setting. (5000 XP)
Immortal fame - Complete campaign on the “veteran difficulty” without die off. (5000 XP)
Chronicler - Find all collectibles in the campaign. (5000 XP)
Above and Beyond - Acquires all the awards for all missions. (5000 XP)
Duty Calls - Complete all 110 challenges from within the campaign. (5000 XP)
Tried and True - Achieved 35,000 points in the training mode. (5000 XP)
Grim Reaper - Kill 2,000 enemies. (5000 XP)
Full Honors - Unlock all decorations in the campaign. (5000 XP)