Some websites will lock the download behind "human verification" surveys, attempting to steal your personal information or credit card details.
Since you'll be playing the game via an emulator that simulates a complete PS3 system, your PC's hardware needs are much higher than the original game's console specs. Here is a general guideline for smooth performance with RPCS3: call of duty 3 highly compressed pc game download 2021
Another popular option is the RPCS3 emulator . The game is currently rated as "Playable," though it may require a powerful CPU to maintain consistent performance. Some websites will lock the download behind "human