Sandbag

Sandbags are defensive walls capable of creating new paths for zombies, or slowing them down for a short time. They share a similarity with Barbed Wire in that they only occupy one tile. Their base cost is $15

Priorities
Certain zombies will prioritise sandbags. These zombies are the Bloater, Destroyer and Boss zombies. Note that these zombies will not be distracted by sandbags that are on the sides of the map, and only break the turrets and defences that stop them from taking the quickest route to the exit.

All zombies will destroy turrets and sandbags however, but this will only occur if there is no viable path for the zombies to follow.

Left Path:

 * Integrated Barbed Wire - Costs $45. Deals damage to zombies that attack it.

Right Path:

 * Jersey Barrier - Costs $35. Increases Health.
 * Titanium Anti-Tank Barricade - Costs 300 SAS dollars to unlock.

Strategies
Sandbags are best used to create 1 to 2 wide twists and turns in a map to force fodder through. Maximise the amount of distance between the exit and the zombies and you'll make things easier on yourself. Remember that, whilst weak, sandbags will provide much needed time for turrets and personnel to dispatch the undead. Be prepared to replace sandbags after bloater or devastator rounds, however.