i successfully got dark matter in multiplayer in about january, but in zombies some camo challenges have been completed and surpassed but are still locked. any known fix to this?
Hey, I'm sorry about that. When doing the camo challenges did you make sure you are playing on classic and also made sure that the weapon you are grinding the challenges for has been unlocked in your armory?
If so, you can try some basic troubleshooting such as clearing the cache on your system and restarting your game to see if that helps. If you need any assistance with clearing the cache you can head here for guidance: https://support.activision.com/articles/en_US/FAQ/Deleting-Old-Files-from-PlayStation-4-and-Xbox-One...
If after trying these steps the same issue occurs the best suggestion would be to try to complete the challenege again and if the camos are locked after doing so grab screenshots showing so and report it over to official support. They will be able to gather more information and assist further as soon as possible:
Contact Us (Live Chat):https://support.activision.com/contact_us
Twitter Assistance: https://twitter.com/ATVIAssist
Facebook Assistance: https://www.facebook.com/ActivisionAssist?fref=ts
The live chat with an Activision agent on the contact us page should be available. The chat hours are from 11a.m. - 7p.m. Pacific Standard Time