Hey,
Today I went through the level Mombassa Streets to collect all the audio logs. I already found 5 or so after a play through on Easy. I reached 26 logs out of 30 (up to Circle 9 Arc 2) and then played some other levels on legendary before coming back to finish collecting the others. However, when going to the any of the 3 left in Mombassa Streets, they are not active. I have been following numerous walkthroughs so I am 100% sure I am going to the right places. I have exited and restarted Mombassa Streets many times and they are still not active. Any ideas as to why they are not showing up?