
You will have to drop the previous item to pick up the next item from the workbench. You can also use these items to distract zombies because they will generally try to destroy these items. Once you have built an item, it can be repeatedly picked up by you and all members of your team from the workbench after they are destroyed, but Air Cannon (Thrustodyne Aeronautics Model 23) is an exception. They only accept parts of the items that can be built at that location and stay there until you have completed these items. These workbenches you use to build these items are item-specific. You can only carry one part at a time, and you drop the part you are carrying when you are knocked down at that spot. Thrustodyne Aeronautics Model 23 (Air Cannon) is one such item whose parts spawn at random spots on the map. Some of these parts required to build these items spawn randomly while some have set locations as we will explain in the Black Ops 2 Zombies Buildable Items guide below. You will build these items by adding different parts needed at the workbench.

Black Ops 2 Zombies mode supports the ability to build/craft different usable items.
