Josis,
While I am flatterd about you buying the rules, that was not my intention. I strongly suggest you download our free stuff first to get a look at what it involves. You play with small figures. This may be an issue, we have played we with 6 mm but to get the best you need to be able to turn at least primary weapons to face in the desired direction. Not sure your models can do this. Obviously there are ways round this but it means more markers.
Our rules will not tell you how to fight like above, they will allow you to fight correctly. They will not teach tactics. I would suggest you use your rules and see if they can do the job. If they don't have smoke or have logarithmic weapon ranges then change will be necessary.
Try the scenario again and look at how it plays. If it gives a better result then the issue is tactics, not rules(regardless of who wins).
Solo wargames is something I have not done much of. What I have done was with the objective was to check weapon factors. You are going further.
I think that were I to do solo the interest would be in setting up defences and then having to attack them. The fun would be in the planning.
I would guess that the Russians are not that far from the US and carry about 6 Claymore type mines for use use by a platoon in defence. This would also help the Russians a bit.
Also can I suggest that you Google an area of the type you are going to play on. Typicaly there is more terrain than you use. This makes the game better with any rules.
Most of all have fun and I am more than happy to chat about tactics as to me it's what it's about.
One advantage of your scale maybe you can play bigger more complex games on a small table. These need even more planning. You become the general both sides have to wait and see if there plans work.
Above all have fun and keep us informed.
Brian.