Ambush Mechanic Fix

Bellshnickle#6343

For some armies and campaigns, the ambush stance will automatically prevent all movement instead of decreasing the travel range by 25%. On other armies or campaigns you can go into ambush stance and travel normal with that 25% debuff. Please fix it so that works across the board. Its nothing major but it is slightly annoying having to inch forward to make sure you dont use up too much of your marching bar before using ambush stance. Also, please increase the range for interception because I have had enemy armies walk right past my ambush in a very narrow corridor and it seemed a little bit absurd that they didn't spot or trigger the ambush.