The Annihilation DLC Map pack will be releasing for Call of Duty: Black Ops tomorrow on the Xbox 360 and in a months time on the PS3 and PC.
The pack will contain four new multiplayer maps and one new zombie map known as Shangri-La.
One achievement in the DLC reveals the name of the wonder weapon that will be included on the new zombie map. The achievement known as “Small Consolation” requires you to use the 31-79 JGb215 weapon on each zombie type. The 31-79 JGb215 is the new wonder weapon and it appears to turn the zombies into babies as can be seen in the screenshot above.