Visio networking diagrams | Computer Science homework help

I need three network diagrams made from Visio.  I have attached the base of the network diagram that was turned in for the first assignment.  Here is the information about the company that I am creating the networking diagram for:

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This first diagram has to add: 

Update your corporate network diagram to include branch offices and remote sites.  If your company only has one site, you must assume that at least one executive insists on operating a home office. Also, assume that any manufacturing operations are located in a separate building/site.
Update your network infrastructure using Cisco Packet Tracer to reflect VPN technologies. 
Update your network diagram to reflect VPN technologies.

The second diagram has to add: 

Update your network diagram to include separate subnets for all major departments in your corporation. You will need to subnet appropriately to account for all workstations, printers, and servers for each network and subnet.

Ensure that all manufacturing systems are appropriately airgapped by including a separate router and VLAN for those departments.

The third diagram has to add: 

Update your network diagram to include IPv6 network addresses and subnets.