  In this work we study Randers spacetimes of Berwald type and analyze Pfeifer
and Wohlfarth's vacuum field equation of Finsler gravity for this class. We
show that in this case the field equation is equivalent to the vanishing of the
Finsler Ricci tensor, analogously to Einstein gravity. This implies that the
considered vacuum field equation and Rutz's equation coincide in this scenario.
We also construct all exact solutions of Berwald-Randers type to vacuum Finsler
gravity, which turn out to be composed of a CCNV (covariantly constant null
vector) Lorentzian spacetime, commonly known as pp-wave, and a 1-form given by
the pp-wave distinguished null vector. We therefore refer to the found
solutions as Randers pp-waves.
