Do Commendaations rank up in customs?

Ive noticed a couple people online with Venator and other helms you get from ranking commendations up to master. was just wondering if they boosted on customs or they actually got all the needed assassinations or whatever legitimately.

Im talking about the War games ones specifically btw

Some of these hard to get helmets, EX: venetor, you can unlock with DLC. These dlc come from stores like bestbuy and that ape store thing. I dont think they could get it up without being past sr50.