Dan what R4D meant is you can control LC2 with a TMCC/Legacy handheld but you can't control a TMCC/Legacy engine with a LC2 handheld.
None of the Lionchief engines are referred to as Post War, they are just based on look of the Post War engines. Not many are even direct copies with the same paint.
In the past Lionel, Williams, and even MTH and K-Line have made Post War reproductions but none of them have Lionchief control.
Pete