Some quick comments, from one rookie templar to another

1) The rhino is a deathtrap, from what I've read. My guess would be that you just don't have any scouts, and that's why you aren't using neophytes, but especially when it's the only rhino on the board, I would swap the rhino and the points from your assault termi squad to create some 20 man squads to try and zeal across. I'm not sure how well they'd survive without a chaplain and some cenobytes, but I'm still pretty sure they'd do better than the rhino. Either that, or put the other
tac squads in rhinos also, so at least you can get some decent
av 12 target saturation between the two dreads and the three rhinos.
2) Like they said, move the teleport homers onto the assault squads. That'll be a nasty little surprise for whatever poor unit is near them.