Removing gatehouses

Is there any way to remove the gatehouses from the settlement plans to leave a hole in the wall? I'd prefer to set them to be permantantly open (as when a spy is successful), but I doubt that's possible.

When I edit the settlement plans to remove the gatehouses, I get a CTD just after the load screen starts (i.e. about 10 seconds after starting the RTW program).

What I wanted to do was change the towns/cities so that the AI wouldn't have to besiege them, thus avoiding the worst of the Load/Save bug. To compensate, I was going to add more towers (which I can do) and up their RoF (which I think I can do).

Any ideas?

Much easier to just remove walls altogether.

-Simetrical

While good in theory, it wouldnt actually work. I once battered down nearly every section of wall in Rome, (as the Seleucids) yet whenever I went to besiege the city I had to build siege equipment. So even though the wall was unrepaired and there were openings enough for three full stack armies to comfortable march through, you will still have to wait in order to attack a settlement that has walls of any type, in any condition.

I know I could remove walls altogether, but I wanted to help a smaller/weaker defender fight off an attacker. Although, the way the AI works, it probably wouldn't help it much when it's defending ~:) .

Anyhoo, it sounds like it's not going to work even if it were possible.