Board Thread:Questions and Answers/@comment-89.233.136.29-20160124150701/@comment-172.56.16.164-20160127200410

On the Moon go to the Reaserch Center and you should be able to find Mars 4 Dozer to reaserch (assuming that you have already researched Mars tech 1 ,2 and3). Once the research is finnished you will be able to build a dozer in the Shipyard. And then of course send it to Mars with a Gamma8 or Vasimir.