I think it comes down to understanding the Red OOB and echelon doctrine.
A typical MRR will have an assault contingent (tanks plus BMPs) and an exploitation contingent (tanks plus BTRs)
Your first wave Battalion should look like this: Recon>Tanks>BMPs. The big question is when (and where) to dismount the infantry in the BMPs....too soon and the tanks outpace the grunts; too late and the infantry die in their IFV's.
Don't lead your assault with the BTR Batys. They aren't meant for a slogging match.
Maintain forward momentum and use Assault orders.
It helps to put yourself into the head-space of the Red Army: they think on two levels....Military Arts and Military Science.
This link will give you a meta overview.
https://dl.dropboxusercontent.com/u/197 ... 00-2-1.pdf
This one is Soviet equipment.
https://dl.dropboxusercontent.com/u/197 ... 00-2-3.pdf
Links courtesy of forum member JohnO in this thread...
tm.asp?m=3472585