Kelley

Hi, I know that these are probably stupid questions, but I did a search and didn't find anything so here goes. A few days ago I downloaded the CMBO demo,(the full game will be on the way soon) I've been playing it and figured out alot of things but a couple that I have not are; In "Valley of trouble" when playing as the germans how do you use the "target reference point"? and now for the really dumb one, when all you can see on the map is a star representing the US troops does this mean they are hiding, or what? Thanks for any help