Since the game does not have official mod support, "exclusive" community content often refers to custom texture packs or model swaps found on platforms like Nexus Mods or discussed in Steam Community Guides Steam Community Boss Alex Mercer Swap
To run any exclusive .tpf skin file you download from modding communities, follow these steps: prototype 2 skins mod exclusive
Modders have circumvented this by creating "Unlocker" mods or specific skin files that force the game to load the Mercer model over Heller. Since the game does not have official mod