New Additions

Grenades are now working and will be spawning in game.
Grenades, Chem Lights, and Flare's will now attract Zombies.
Lock Boxes will now disappear if they have not been opened for 3 weeks (up from 2 weeks).
Lock Boxes can now be picked up and put back into your inventory. This requires the lockbox to be empty. The owner of the lock box is the only one able to do this.
Increased the damage on the Nail Gun from 10 to 26.
Added the ability to select any language for all territories.
Added multiple gameplay changes to campos.

Bug Fixes

Black Boxes are now fixed.
It is no longer possible to stack barricades.
Zombies will no longer stack in each other.
Fixed a bug that was playing a ricochet sound when using melee weapons.
Fixed some bugs where zombies were able to navigate through objects in the world.
Fixed an exploit with muting players.
Fixed a bug with switching backpacks that allowed larger weights in smaller backpacks.
Fixed a bug that allowed the use of tab while in your inventory.
Fixed a crash with placing a time capsule in a lock box.

http://forums.infestationmmo.com/index.php?/topic/32761-patch-notes-july-1-2013/

super excited for the black boxes being fixed