Please do. The biggest difference in modern vs WWII is that with SF, practically anything that is in LOS can be killed in seconds.
The lack of lethality and corresponding length of time in BN armor duels will be a nice change from the laser accuracy and instakills in SF, but sometimes it's nice to play with the incredible power of today's weapons. It's a great challenge to complete your objective without the ability to press on through high casualties, due to a totally different political situation.
One more thing, I suggest you get the hotkeys.txt mod to make the commands more what you're probably used to from BB and AK.