I love the dmr and want to use it in war zone but can’t get the unlock
Welcome!
I think everyone has the same problem
Welcome!
Weapon/vehicles certs are random.
Well you aint the only one…
That’s why u shld keep spamming warzone or warzone assault for reqs and spam buy the gold packs
I guess I was lucky I have 2
Got 2 and blue skin…silver packs and got them within days of launch. … guess I was lucky but one of them you have to level up to req 8 or 9. I pick them up from ground in game most of the time 
Once you get the cert it is still pretty hard to get to 8 reqs. Unless you get the basic Dmr.
If your just buying gold packs your doing it wrong, because the req system in this game is meant to be progressive so start with bronze pack get all the common and uncommon certification then move into silvers the onto gold packs
I was lucky to get a barebones DMR last week.
Spam silver packs. The DMR starts are blue rarity, so getting a gold pack just adds the extra colors on top of that (ultra rare, legendary, mythic) for permanent unlocks meaning a bigger pool to draw from, meaning less chance to get what you need.