We need Cross-Core coatings for all items including Weapons, Vehicles and Armor sets. So far we have only heard about Armor coatings being Cross-Core but they need to make it so if a player earns a coating they should be able to use it wherever or whatever item they like.
For example currently the Razer Deathly Poison Armor coating is the same for the MK-VII Armor and BR-75 Weapon. Similarly other coatings such as Halcyon Days or Scorpion Punch should be usable across Armors, Vehicles and Weapons.