The single-player campaign, featuring the wise-cracking squad (Haggard, Sweetwater, and Sarge), was a Hollywood blockbuster you could replay endlessly. The .iso allowed owners of multiple PCs to install the game without wearing out physical discs.
Unlike modern Denuvo hellscapes, Bad Company 2 used coupled with an online activation requirement for the single-player campaign. Even to play the story, you needed to authenticate. Battlefield.Bad.Company.2-RELOADED.iso