The protective box is not needed on Chernarus.
If other maps need it we are better off spawning a permanent box around
the debug area once, instead of constantly creating new boxes every time
a player logs in.
Needed to add it to variables.sqf lists.
@icomrade - Any reason FireBarrel_DZ was removed? I think we still need
it, since it is an epoch buildable class, unless we merge it with
Land_Fire_barrel.