This is what they know so far I guess.
Call of Duty: Black Ops Weapons
Assault rifles
* AK-47
* Steyr AUG
* CAR-15 Commando
* G11 (confirmed from GKnova6 document)
Rifles (bolt action)
* Carcano
Sniper rifles
*
Submachine guns
* H&K MP5k Prototype
* Ingram MAC-10
Light Machine Guns
* RPK
* M60
Shotguns
* Franchi SPAS-12
Bows
* Scoped Crossbow
Pistols
* M1911
* .357 Magnum
Launchers
* M202A1 “Grim Reaper” Rocket Launcher
* RPG-7
* China Lake Pump Action Grenade Launcher (confirmed from GKnova6 document)
Flamethrowers
* Flamethrower (confirmed from GKnova6 document)
Attachments
* Swarovski Scope
* Suppressor
* China Lake GL Attachment
* Incendiary ‘Dragon’s Breath’ Shotgun Rounds
* Explosive Tipped Crossbow Bolts
Grenades
* M67
Special grenades
* Smoke Grenade
Other
* C4
* Knife
* Machete