Just started game and shooting the german scarecrow with new recruit under command but cannot get out of pop up indicating how command fire teams etc?Cannot move forward.I have AMD athlon 64 Ge Force 5200 video card .

Follow the instructions CAREFULLY at the top of the screen. Don't just press the space bar like hundreds of people do. If you follow the instructions to a T, you'll advance.

You could also disable the training in the main Options menu.

Sammy1966. I'm having the same issue - stuck in the training mode shooting at the scarecrow. Did you find that the solution provided by palezoic1 worked?? If you get a chance, please let me know...because I was following the on-screen directions (I thought). Thanks. Steve

You must hold the supress button for your m8, I think it's red(Hartsock)(if im wrong im sorry). He will assault the scarecrow.
That's what they ask you to do.
So try that and come back if you have any problems.