In this scenario, you will take control of American and Native American troops and travel through the Rockies. Then you will gather allies and attack the last remaining force of the Russians. This scenario is the last scenario in the Russian Invasion campaign. In it, you will finally defeat the Russian invaders who have infiltrated the US.
First off, you can't build or manufacture anything. No town, no home city, and only the few allies you can pick up from the two native villages along the way.
You march in a perfectly straight line (the entire map consists of a perfectly straight corridor running from SW to NE) through two native villages each of which awards you a few warriors.
Then you get a few reinforcements "from the north" which are ambushed as they start toward your force so you never even get to combine your two small forces into a single still small force and when the Russians have finished off the "reinforcements" their force, which outnumbers you by about 2 to 1 simply overwhelms you in a few seconds.
That's it. The whole thing is pretty much over almost in less time than it takes you to load it and set it in motion and before you even had a chance to form any opinions. ;)