How about making your gamer emblem into a weapon camo i think it would be cool on some of the guns,an just give it something new,(it would use some type of mirror clone pattern) that it would be selected (checked) in your emblem's (a group 3-6 emblems) you place in order 1 for clips,1 for upper gun an,1 for lower gun & they all have have 2 parts (A & B) if you want upper an lower pattern on the parts,then bam you have YOUR OWN UNIQUE CAMO.
An if you choose to prestige master you also get a CAMO using the last 3 prestige's or any 3 selected by player,or every prestige you unlock a camo then you can pick 3 when you get 3rd prestige.
Also change the master prestige emblem a bit to were it rotates an you can also choose the other side of the emblem to give it 2 unique sides your just one but it still rotates that was always one of the features almost every COD fan liked was just the whole sick looking call sign that rotates or had some type of animation which every see's your working into with the new Dragon an Cyborg camo & call-sign.
And be able to use the DLC Camo's an other unlocked camo's from multi-player in Campaign an Zombies?? I mean a diamond RAY-GUN or gold would just be something fun for the players to enjoy more?