Combine Commands allows for you to issue commands to MPF/OTA NPCs ICly through voice commands.
To use this, you need to be a Combine (MPF/OTA) and then you can enter 'Command Mode' buy using the 'overwatch' voice command. Then, you may use one of the following to issue a command.
Shadow - Orders Nearby NPCs to follow you.
Lock Position - Oders followers to stop following.
Amputate - Orders nearby NPCs to attack your target.