Arqade is a question and answer site for passionate videogamers on all platforms. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I finished the game and had skipped some side missions and realized that I didn't get the trophies for finding all of the collectibles. Gun Collector for weapon parts, Armorer for circuits, Librarian for logs, Professor for artifacts. Were some of them in the optional side missions?

share|improve this question
up vote 0 down vote accepted

After going through some walkthrough videos on IGN, it is apparent that not only are some of the collectibles in the side missions, they are also in the CO-OP side missions. So if you're like me, playing solo, you have no chance at these trophies. What were they thinking?

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.