And what do you think of rotary tunnels?
When you enter it, no matter from which side, you always go out at the
upper side of the other end. When such a tunnel gets shot, this
direction changes, ie you will go out at the right side of the
other end, until you shot the entrance again, which makes tank to go out
'south' of the other side and so on. Of course, it would be shown, which
the 'orientation' of the tunnel currently is. When there is a wall or
other elemant not letting go out at specific side, then you die or
simply cannot enter.
Waiting for opinions.
Arek