Helldivers 2 hasnt changed much since its launch. Metas are still primarily the same, there are the same points of contention now that it had when it was released, and not much has been added beyond what subsequent Premium Warbonds have offered. That said, for anyone who has been playing often and keeping up to date with balance patches, there are subtle details that are noticeable that, when compounded, make a fairly significant difference. For instance, actual supply lines werent visible in Helldivers 2 until recently.