What will the wonder weapons be like in Vanguard Zombie on the first map?

What kind of wonder weapons can we expect in Vanguard Zombie mode on the first map? From the Treyarch press release, we know there will be several, but here’s what we know from the files:

• Ray Gun – The files label it as “Cool Gun.” Some speculate it might be a freezing version, but I believe it will be the classic ray gun.
• Shield – Yes, you read that right. Interestingly, it seems the quest wonder weapon will be a shield, which adds a unique twist.