I think, that only junior part of the team handles dlcs. I am sure, that models were bought from Max Dmitriev. But seniors and middles are focused on game engine development. I definitely know, that this is very hard, painful, but exciting process and it takes huge wast of time. So, i'll try to be patient for a while and be good with juniors work - dlc.
In real life, Soviet 6x6 trucks were not equipped with diff lock on front axle. There were diff lock between two rear axles. 4x4 trucks never had any diff lock at all. Keeping it as close to auto history as possible is the best practice imo.