Clicky
And some screens:
Hidden/Spoiler:
After extracting, copy the campaign_1.ctm file into [Your SWRC directory]/GameData/Maps
Run Republic Commando
Launch any campaign mission
without pausing the game, hit the ` key on your keyboard (should be at the top left)
A console should pop up
type "open campaign_1" (without quotes)
Enjoy the map
Note: Some squad commands will not work if your squadmate is not completely in line with the object in question. This is simply because I did not put in any planning, so you'll have to give your squad a little nudge to go somewhere.