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)

No content has yet been verified by Treyarch or Activision, but the code is very real and all maps currently exist or have existed. Area 51 is likely to be a Zombie Map, with four of the above other maps likely to make the final cut for Call of Duty: Black Ops Map Pack 3

Map Pack 2 - Escalation will be released on Tuesday, May 3rd 2011.