Resident Evil 6

To do this, you need to not just go through one storyline, but go through them all, that is, 4.
But you don’t need to go through all the characters, just go through:

• 1. For Leon or Elena.
• 2. For Chris or Pierce.
• 3. For Jake or Sherry.
• 4. For Ada.

With the release of the patch, it became possible to select chapter stages.
After the first passage (for example, on “Beginner”), when you have access to all levels, simply select the last stages of each chapter on “Normal” difficulty, complete them to the end and receive a reward for the level.
This will save a lot of time.
Remember, your goal is only to get a reward for completing the level.
The order in which you go through the chapters doesn't matter.
The trophy can be automatically obtained by beating the game on Veteran or Pro difficulty.

Complete all chapters of all campaigns (Leon, Jake, Chris, Ada) on Normal difficulty.