Removeing and Editing Scripts

I would like to remove all scrips apart from when the main chaos invasion happens. I belive this may solve a lot of my CDT. Is it posible to do this and How?

There are also commas and swop rounds in the name.txt file.
A numeric value of 0.F in a ai db file
Something unhelpful with the Strat file roman province and laurelorn province.
A weird aging effect with the twelve turns per year, which when you look at the script looks fine, but ages a general three years in first three months ???

im sorry but that makes no sense to me also doesnt look very relevent either? any one else help