This Seeking Tech guide will explain how you can easily get the Credit Where Credit Is Due trophy and achievement.
To do so, follow the video and text guide below:
Step 1: Make sure you accumulate credits with the Tactical Tracker. This is done by killing enemies.
Step 2: Make a manual save. Do not interact with the Supply Box until you manually save.
Step 3: Interact with the Supply Box to deposit the credits.
Step 4: Reload the manual save.
Step 5: Repeat the depositing credits and reload cycle to unlock Credit Where Credit Is Due.