I was playing small campaign mode with British and it seems like time after time even with a mixed or good reputation, I cannot offer a ceasefire. I even got to the point to kicking the french all the way to their last stronghold in the bottom of present day France, I had three stacks of well trained units siegeing the capital. I even offered an extremely generous list (trying to postpone victory conditions and to see if they would accept.) for a ceasefire like giving back not only Paris but two other major regions, a whole whopping bank full of hundreds and all the rights I can give them. AND THEY NEEDED THIS, I didn't. They still said no and it only said Balanced on the tradeoff info.

My observation is this, at the dawn of endgame, the computer will do everything it can do to stall but not ceasefire. I was at war with Milan and Spain at the same time. I took over completely Sicily when they also refused my generous ceasefire (Actually better than above.) I saw stacks upon stack trying to take over my foothold in France but with no avail. I think the CPU got desperate toward Endgame and tried all that it could do. Even HRE stood back and watched, IGNORING ALL MY PLEAS FOR ANY ASSISTANCE AT ALL. Stupid Milan and stupid nations loving them too much. Well, lets just say I won.