Hi all. I am starting this thread to give you people a trick for Prototype 2. So if you open the collectibles tab from the pause menu and after that press A and then hover over a district then you will get that there are sonar pings which permits you to get that where are the collectibles. I am sure that there are many of the users who are already aware of this thing but then also I am posting it to make the other people aware of this thing. Other than this, if you are having any other tip or anything that you would like to share with us then please post that over here. I am sure that this is going to be very useful for the people who have just started playing this game. Good luck and keep playing.