For this section create 3 new Windows virtual machines.

1 of them requires just 1 virtual NIC connected to the public network.

The other 2 require 3 virtual NICs each. One connected to public, one connected to iSCSI and the other connected to heartbeat\private. You could use the following

VMNet1 Public 172.168.10.0 255.255.255.0

VMNet2 ISCSI 192.168.93.0. 255.255.255.0

VMNet3 Private 10.10.10.0. 255.255.255.0

So the domain controller will have 1 NIC connected to VMNet1

Each cluster node will have one NIC connected to VMNet1, VMNet2 and VMNet3.

Get all 3 machines installed and networked and post back for details of how to create the domain controller.