Alright to transport the tanks in Mission five of Halo wars, you need to bring up the Hero's command screen, were you would normally use the Carpet bomb, Mac cannon, and etc. On that screen selected Icon there is that of the pelican transport ship. Once selected you'll get a circle. Once done a circle will appear, place that circle over some of your units and click A to select those units to be picked up, and then move that circle to the location where they need to be dropped, that hit A again. A pelican transport will transport and move the tanks there and all the other selected units to the area but the area needs to be lite up. so move a marine unit or a single hornet over the area so you can transport your units to that area, also the Rhino tanks need to be green so it's under your control, if it's yellow/orange it's controlled by the AI. You need to go the landing pad by your base and pay out the supplies to order a new Rhino tank for your use, if you still continue problems, and have that of X box live, send me a private message or E-mail which is
[email protected] and I'll be more then happy to walk you though this part of the game.