Second, most fleet helos (as mentioned previously) only have TACAN. Our precision approaches include the mighty PAR.
And it yet again brings up the question of "why are we teaching GPS???" You learn a GPS in the T-34 to move on to the next a/c that has GPS, a TH-57? After that, what are you going to fly with a GPS... a T-34?
If fleet aircraft don't have it, why do we train for it? It certainly isn't buying the IP anything (since we can't do LNAV/VNAV mins).