User blog:N7/Infomation about Call of the Dead and Map Pack 3 found in game files.

By trailing through endless amounts of code found in downloadable content or game patches, modders have discovered some new information on new perks and weapons for future Black Ops map packs

This infomation isn't 100% confirmed but it was found in Treyarch's coding, so should be legit. The New Weapons:

V-R11 "Humangun" - Turns Zombies into Humans. V-R11 Lazarus - The V-R11 Upgraded. Scavenger - Explosive Sniper. Hyena Infra-dead - The Scavenger upgraded. Semtex Grenade - Sticky Grenade

Map Pack Leaks:

Menu_ZOMBIE_COAST - A shipwrecked crew of fearless explorers is hopelessly stranded in an abandoned Siberian outpost. Their dream of discovering the true origins of the mysterious Element 115 unravels into a Hellish nightmare... this is Escalation Call of the Dead MENU_ZOMBIE_TEMPLE - Temple of Doom? <-- That is Treyarchs description in the coding. MPUI_OUTSKIRTS - Fight over the tight interiors and long roads of a rural Soviet town.. this is Escalation StockPile MPUI_DESC_MAP_HOTEL - Battle to control the rooftop of a swanky Cuban hotel.. this is Escalation Hotel MPUI_ZOO - Be ready for long-range firefights in this abandoned Soviet zoo..this is Escalation Zoo MPUI_GRIDLOCK - Intense combat in the aftermath of a Soviet ambush on American soil.. this is Escalation Convoy

Unreleased Content Set for Map Pack 3

MPUI_SILO - Conflict erupts near Soviet missile silos. Lots of close engagements and flank routes.. (Silo) MPUI_AREA51 - This map does not exist.. <-- I'm not trolling that was literally in the coding. (Area 51) MPUI_FIREBASE - Rumble in a Firebase.. (Firebase) MPUI_GOLFCOURSE - Keep an eye out for snipers in this cliffside resort..(Golf Course) MPUI_SALVA - Two sides struggle for supremecy in a salvage yard.. (Salvage) MPUI_SNOWMINE - Winter combat in a deserted mine. Great for objective-based game modes.. (snow mine) MPUI_WARMUSEUM - Battle for control of the museum. Intense interior firefights.. (Museum)