I have seen different places that Mot. Inf. in NWO 1939 Lebowski can not blitz. For example place 1 Armour, 1 Tankette, 1 Mot. Inf and 1 Mech. Inf. in Koeningsberg and remove the units in C.Poland and Lodz in edit mode from the start. Now blitz from Koeningsberg, through C.Poland to Lodz with all units. You will see that all units can do so except the Mot. Inf.
Mot.Inf. does not have blitz ability on this map.