Genetic data from Yuri'sclones allows them to be reconfigured to serve the Allies faithfully and use their psionic abilities to dominate would-be assailants while they do the dirty work of destroying base facilities of their former master.
The psi commando is also the only stolen tech unit in the game which is placed on an official map. In the Red Alert 2 mission Weathered Alliance, a psi commando is found in a northeastern island, next to a tech outpost.
He shares his voice lines with the Psi-Corps trooper.
Yuri's Revenge (released version 1.000): changed prerequisites.