I recently set up and played this game from my Command Subscription.

It uses a similar system to Fateful lightning, which is considered a
good game, but the two follow on in the series were not. The key to the
system is the CRT. Units can stack 3 high, with only the top unit
firing, or taking damage (usually). Combat results can disrupt a unit,
force it to retreat, rout or eliminate it. Units can be eliminated
rather easily, but can come back often. They do this via "extra
strength" points that formations have. The effect is of units melting
away, reforming and coming back. It seems VERY odd at first, but after a
while it does indeed act like a lot of civil war action reads. Units
stand for a while, fall back for one reason or another, and another unit
moves into the hole. Also, there is a variable turn structure. The turn
may end early anytime after the first "couplet". It can also last very
long if you roll well, as at the end of each couplet you roll to see if
the turn ends or goes on. 

There are three scenarios, the "main battle" which saw the Army of the
Cumberland go up Missionary ridge, a smaller one where Longstreet tries
to close the supply line opened by Hooker, and a "what if" where Bragg
lets Longstreet pursue after Chickamauga to finish off the Army of the
Cumberland. This latter had always interested me, so it's the one I set
up and played. 

A few union units set up between Missionary ridge and the city. A small
number of Confederates set up on the Ridge. They win if they penetrate
the Union defense line around the city. Each couplet, the union rolls a
D10, and subtracts 2. That's how many units he can pull from a pile to
set up in Chattanooga, UNstacked. This is an important draw back, as
stacks last longer in combat. There is no extra strength in this
scenarios (makes sense, just after a major battle), so units that go
away don't come back. The Confederates get to pull from a cup that has
one of every formation available to them. Pull a unit, and the rest of
the formation arrives. If the Reb gets lucky, he pulls Cleburne, who
arrives with his very large formation. It's about 4 times as big as all
others, and it gives the player an extra leader. The Union must make do
with the "Rock" while only Longstreet is on map until Cleburne arrives. 

In the game the Union rolled quite poorly, not getting ANY
reinforcements 2 of the first 3 turns. This let the Rebels smash most of
the initial units, and start to move in. Enough union units did arrive
to make a decent battle line JUST before the city. Even so, its a
closely balanced game, and either side might win. I will admit I just
don't like the system. Maybe I am too used to the Gamer's CWBS. I am not
sure the changes between FL and this would make enough difference
(especially for the scenario I played). It SOUNDS like a good game, esp
the one I played and the Lookout mountain scenario. But...... 

There are some problems - the Union defense line should be on map, and
is not. Grognards errata has it's location. There should be an army
morale track on the map, it's missing. On Shiloh its just below the CRT.
I strongly suspect Chattanooga and it's Shiloh cousin will end up in the
fall Games Plus auction. 

Regards, Pat
Last Played: DAK, Airborne (PG), Chattanooga