Black Ops 2 Zombies Origins Napalm Air Strike Grenades / Monkey Bombs
To acquire the Napalm Air Strike Monkey Bomb you need to follow a few steps below
1.Fill up the 4 boxes with souls around the map and collect your prize of Thunder fists. You can do this by killing zombies near them Tip best to start ASAP and as soon as the robot has passed if it walks over the area box shuts and need to start again on that box
2.Collect your stone tablet from the Tank Station Table Near the Back Door ( you will see it on your screen when you have it) and take it to the church and place it in the font
3.Kill zombies using only your Thunder fists till your stone is fully charged you will hear a noise and see it glow.
4. The Tricky bit. You need to get your stone from the Church to The Table in the tank station without touching any MUD. There are many ways to do this but I found the tank the easiest and just jump of near generator 1.
5. Once its placed on the table you need to kill more zombies using Thunder fists till you hear another noise and it glows.Now you Have Napalm Air strike Grenades
They act similar to monkey bombs but with much more damage and they destroy Panzer claws.
Video Guide http://youtu.be/QJqrVh9NZRs