In multiplayer, when you get every weapon diamond, you unlock the dark matter camo. Now usually I'm a more casual player, and I usually stick to 2-3 guns I like. If I happen to get gold camos, it's just from playing the game, and not because I go for them. But god damn that camo is sexy, so I've decided to start grinding out camos and I've been having fun doing it. What do you guys think? Does anyone here actually play this game?