Took me 3 months because it's difficult to play against mythic and ultra players while I only use epic loadout most of the time. Never touching DMZ again for the rest of the season. Will just wait for the next season if new camos will make the mode worth playing again.
Along the way I've made my own camo tracker because I immediately want to use the camos I've unlocked. Sharing it if anyone wants to use it. It's a simple google sheet. You can see it here.