I was looking for a walkthrough that I could use while playing the single player to help me get all of the collectables like the special dog tags and weapons and just wanted to share it with you guys if you wanted to do it yourself. Each level has its own page so there shouldn't be any spoilers and it tells you where each dog tag is at the top of the page http://www.vg247.com/2013/10/29/battlefield-4-guide-all-missions-solved/
Just found this youtube video that shows guns and dog tags. First video should link to the second and so on.
GFish's vid was great but on Baku it only shows where 3 guns are. My campaign is telling me i have collected 3/4 for that mission, does anyone know where the 4th gun is please?
I think the fourth is one that you pick up from a killed enemy soldier. I generally pick up and drop a few guns from dead enemy soldiers each level, unless I know I've already picked it up before.