MTP, Tropical MTP and Windproof MTP are uniforms in 95 Soldier Combat System design.
There is a major difference in thickness of the fabric and the size of MTP overprint (check link from my last post) in PCS patches are smaller then in first MTP design.
MTP = S95 L/W
MTP Tropical = S95 Tropical
MTP Windproof = S95 Windproof
PCS Warm Weather = MTP Tropical or S95 Tropical
PCS Temperate = a lot of thick of S95 L/W
PCS Windproof = MTP Windproof or S95 Windproof