well, i would give them a rhino instead to allow you to shoot out of it. If you are looking for an assaultable squad, do what i do. Give the commander a power fist and a combimelta. use the bolter in everything except the turn you plan to assault. then its a meltagun and assaultable with. (pretty nice huh?) the other guy should get a meltagun. rush the rhino up the field with the melta guys demolishing anything that can shoot (preferably tanks) just remember that when you do shoot from the top it make the rhino open topped for the turn, but i think its worth it for the extra firepower. With the combi-melta and power fist your commander comes out to be 55 points. a pretty good buy for a fist and melta. i would suggest giving him terminator honors if possible. that extra attack could be a tank pounder
. GL