Removing city fortifications

[♔Dignan♔]

If I remove any line that delineates a city fort or improved city fortification from the battlefield_buildings and building_culture_variants tables in the db file using the PFM program will this get rid of all city fortifications?

There are way too many siege battles in the campaign.

[♔Dignan♔]

I tried editing out any occurence of settlement or improved settlement fortifications from the battlefield_buildings and building_culture_variants tables and create my own mod. When I activate the mod I get white screen CTD when I try to start the game. Anything else I'm missing or is this feature not moddable yet?

[♔Dignan♔]

Anyone got any ideas?

I thought I was on to this by removing all mentioning of forts of any kind from these files. Just CTD. Anyone?? Bueller?

battlefield_buildings
building_culture_variants