Never really played TY, but I read the rules. I also have played FOW... I reckon it is playable. The table will look a bit more crowded because the larger footprint of the modesn and buildings. I would suggest to increase distances by half. To make sure my math is understood... ( sorry got in silly discussion with my mother who is a retired math teacher... about numbers
) if the 73mm gun on the BMP-1 is listed as 16" put it a 24" . In my humble opinion it gives a better 'look' with 20mm models. On the other hand you may want to increase space or reduce forces (and leaving indirect fire stuff off table).