Just had this question in my head... there was also another question i had which wasn't really important, but i forgot it anyway.
Co-op elements- what will the co-op be like in TDL? will you have to save teammates which have been wounded, will you be able to trade between players, will you be able to apply first aid to other people/throw ammo and weapons to other people?
There won't be any of that "player is down, hold E to get them back up" silliness. It will all be very fluid. You will help players the way you would help them in a real situation. If a zombie is grappling a friend, kill the zombie. You can drop weapons out of your inventory. Pretty straightforward situations like that.