I will take a stab at this one...
I recommend that you check out the ATF demo at:
http://www.prosimco.com/atfdemo.zip
Raging tiger will be very similar to this title in scale and game play (though it is going to LOOK alot better and add a ton of features to this engine). If you have any questions about gameplay, this is a good place to get them answered. I recommend you use the demo tutorial (accessed by clicking "tutorial" on the opening dialog) to guide you through your first game. It will answer 99% of your questions.
In general, we strive for a highly playable game that replicates real life as closely as possible. We never "dumb down" the capabilities of units or the skill of your AI opponent. But we do try to create "balance" (i.e. an entertaining scenario that is challenging, but not impossible to win) by the selection of terrain and tactical situations.
Thanks for the question. Let me know if you have anymore.