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 Call of Duty: Black Op's Escalation, and even potential information on unreleased Map Packs.

The New Perk:

It's going to be called Deadshot Daiquiri. "Deadshot"

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)