For using -nomap:
Go to your desktop, and right-click on the shortcut. Choose properties. A new window should open. Click on the tab named "Shortcut", then, under target, it should read this (if using the beta patches):
"C:\Program Files\Codemasters\OperationFlashpoint\FLASHPOINTBETA.EXE" -nomap
If your using an official, non-beta patch, FLASHPOINTBETA.EXE should be FLASHPOINTRESISTANCE.EXE
As for the Apache and Huey's, I think they may have been working on them, but no longer are. The addons are, however, being made by other mod teams.