Chests/rare weapons

Now, we all know that there is rare weapons in a chest well, let me tell you something, its that you have to get lucky or find a different looking chest. Some chests are hidden in corners of missions, others are outside of missions in caves. So, this means you HAVE to look and everything. Yes, its going to be hard to find one but you be thankful in the end. Also, sometimes things that are encrypted could be a legendary or rare piece of gear its just you have to be lucky.