[Mobhack]

Try thinking of movement class. Track, 2WD, Multi-WD, etc.

Amhib capability will affect chance to stick in a paddy field, and -1 water off beaches etc .

Vehicle weight may have effect - e.g. on crossing barbed wire.

Crew experience can affect sticking chance.

Suppression may have an effect.

As can speed you hit the bad terrain at, which as Don said above is the key variable.

There is no "table" of chance to stick - it is done by multiple bits of code, and so is far too complex to lay out as a simple table.

Best way to cross, is to stop at the hex before the bad terrain, then next turn, to advance one hex only into it, ie to take it slowly and very carefully. Just like driving a car on the road, if you come to a vehicle ford, you stop and engage low gear before progressing.

Cheers
Andy