RE: digging in
Love your avatar Scaz! I know its from Squad Leader but it reminds me of Steel Panthers.
I would like to add, that if you come across an empty foxhole you can jump in it automatically too, well almost automatically, after you move in the same hex there's a turn or two delay, so it's pretty much automatic, but you don't have to do anything, just move there and you don't have to press a button or anything. After you move to a hex that contains a foxhole, how long it takes before your considered "dug-in" depends on how much suppression you have and maybe some other modifiers. But like SaSTroop says, you can't dig a foxhole during a game, only during the deployment phase of Assault and Defend scenarios.