The antagonists in Homefront were originally intended to be communist Chinese, but were later replaced by a unified Korea for two reasons: the risk of a possible backlash by the Chinese Ministry of Culture and the reality of economic interdependence between America and China that made the Chinese “not that scary,” according to Tae Kim, a former CIA field agent and consultant on the game’s backstory.
This was also the case with this game.
This is the source: https://kotaku.com/china-is-both-too-scary-and-not-scary-enough-to-be-vide-5732623