Hello Darren,
To be honest, as long as both sides in the game use the same basing system, and as Dave has stated, the units are distinguishable, then you can quite easily use the figures for BGPzG.
Also handily, the FoW platoon nicely equates to approx. a company (give or take some support elements).
Alternatively you can just divide the forces by 2-3 to get the BGPzG forces....