This mod changes Houston's face similiar to the one shown on the E3 2013 Stage demo of Payday 2.
Houston's face texture is changed to a texture that heavily resembles the one used in the 2013 E3 Stage demo. This texture is used for some cop models in "vanilla" Payday 2 so this face texture was probably recycled as was the PD2 Beta Karl Lakner Dallas one for pilot Bile.
Reference to Chris Shiherlis character from "The Heat" movie.