Vehicle recovery

[low_bidder]

It really really helps the breakdown percentage if you stop before a hex with a high breakdown chance and then enter it the next turn. If you are going to try 2 hexes in a row, don't go for that 2nd hex until the next turn.
And never never ever end your move in a rough slope hex. That is living large and isn't wise at all.
Sending armor thru difficult terrain is a good way to gain tactical surprise, if you opponent is asleep at the switch. If he isn't, it's a good way to get french fried. You have to balance the M-kills you will take against the losses of a more conventional approach plus the chance of getting caught being sneaky.
At some point a calculated risk becomes a desperate gamble. That point isn't fixed.
Imp, was that map #35? It has lots of tracks thru the swamp that will take vehicles. You just have to look for them. There is a network of clear terrain hexes that look like swamp but aren't.