That’s fair. Battlefield is the most basic of all three. COD being even more basic with the elimination small maps. They all have a class system, military assets, and the same basic concept of teams. The difference is in the realism/depth of how far you want to go. Now, what OP is asking for is not practical from a business standpoint. You need deviation to separate your product. So there is going to be that deviation to the point of it being worthwhile to compete with the battlefield. But never to be what OP is asking for. It isn’t smart business.