The difference between slugs and pellets for the Winchester

I just got this working myself, although it took some help from the internet to get it working.

• Install Arma 2 and Arma 2: Operation Arrowhead.
• Close Steam completely, and then rerun it as an administrator (this is required to launch Arma 2 for the first time. You'll get a bad serial key error otherwise)
• Create folder called @DayZ in C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead
• Create a folder inside of that folder called Addons, and then download all the DayZ mod files from the DayZ website into that folder (So they should be located in C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead\@DayZ\Addons)
• Extract the files into the Addons folder. Make sure they are in the top level of the Addons folder or Arma 2 won't be able to find the files.
• Launch Arma 2 (you need to run Arma 2 first in order for Arma 2: Combined Operations to work, which is required for DayZ.
• Launch Arma 2: Operation Arrowhead from the Steam library, and run it as Arma 2: Combined Operation

That's all you'll need to do to get DayZ working. Chances are you'll want to filter out the non-DayZ games, which you can do by opening the Filter menu and setting mission to DayZ.

Sources: this video, this thread, and this thread.

From this unofficial DayZ Wiki:

Tents are items that offer a source of storage players. They do not save from server to server but on the originating server they were deployed on. Deployed tents cannot be stolen, however the items inside can be.

So, tents stay on the server they were pitched on and do not follow you to other servers.

It also says the Save command "properly saves a tent although there still is a chance that a server will eat your tent no matter what."

More info here.