The complete bundle (game + all DLC) is sold as Sniper Elite 4 Digital Deluxe Edition on the eShop, often for $39.99 or less during sales.
NSP stands for Nintendo Submission Package, which is a file format used by Nintendo for distributing and installing games and DLC on the Nintendo Switch. NSP files can contain the base game, updates, or downloadable content (DLC), making them a convenient way to manage game data on the Switch. sniper elite 4 switch nsp update dlc free
If you want the full experience without hacking or piracy: The complete bundle (game + all DLC) is
If you already own the base game but want the DLC for free, that’s not possible without piracy. However, Rebellion has released free weapon packs occasionally as limited-time downloads – check the eShop under "News" for past promotions. If you already own the base game but