I can see this as goldrush got developed:
Mapper - Hey, I’ve updated the map a bit, new route for the tank!
djbob - You what? How many new bloody spline points you added?
Mapper - Only about 50, not a problem is it?
djbob - mumble grumble
Mapper - Oh, by the way, I’m thinking of putting a truck in to.
sounds of mapper being attacked with mouse and keyboard
djbob - Oh, ok, I’ll do the bloody truck
Mapper - Forgot to mention, we’ve got these two other cool maps in progress, railgun and fueldump - the scripts shouldn’t take long on them.
mapper runs for cover

If I’d had to do those maps, I’d have started out with nice small steps for the script to work on, but by the end the spline points would be half the map apart from each other.