In the manual for BTS, it is mentioned that siege units no longer cause
damage to units that have health below the siege unit's damage limit.
This
applies when you use the unit to attack a city. You can no longer roll up
with 10 trebuchets and beat a well defended city so easily. However, the
thing that I have noticed is that when you bombarding a city, the number
of
% points that you lower the cities defenses is much smaller. A catapult
with the bombard promotion takes 4% off and without the promotion takes
only
2%. In Vanilla Civ4 and Warlords, I think it started at 6% and went to
10%
or 12%. The result is that if you roll up to 80% city with 5 catapults,
it
now takes a few turns to beat it down enough to attack. BTS seems to make
it easier to defend your cities.
Tim
