Here is an example of one of the OB's. They are based on the rules that I have written, "TO THE HALLS OF MONTEZUMA!"
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ORDER OF BATTLE FOR THE U.S. ARMY.
BATTLE OF PALO ALTO, MAY 8 1846.
Army of Observation: GinC, Taylor (Good)
Right Wing, Twiggs (Poor)
5th U.S. Infantry Regiment, Infantry, (3/3) Musket
Company C 3rd US Artillery, Flying Artillery, (3/3) 6#
Garland Brigade, (Good)
3rd U.S. Infantry Regiment, Infantry, (3/3) Musket
4th U.S. Infantry Regiment, Infantry, (3/3) Musket
Company A 1st U.S. Artillery, Heavy Artillery, (3/3) 18#
2nd U.S. Dragoons, Cavalry, (1/4) Carbine
Left Wing, Belknap (Good)
8th U.S. Infantry Regiment, Infantry, (3/3) Musket
1st U.S. Artillery Regiment, Light Infantry, (3/3) Musket
Company A 2nd U.S Artillery, Flying Artillery, (3/3) 6#
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ORDER OF BATTLE FOR THE MEXICAN ARMY.
BATTLE OF PALO ALTO, MAY 8 1846.
Army of the North: GinC, Arista (Average)
Right Flank Force, de la Vega (Average)
Light Mounted Regiment of Mexico, Cavalry, (0/2) Escopeta/Lance
Zapadores, Sapper, (2/3) Musket
2nd Light Infantry Regiment, Light Infantry, (1/2) Musket
Tampico Coast Guard Battalion/Veteran
Coast Guard Co. of Tampico, Infantry, (1/2) Musket
Right Flank Brigade, Garcia (Average)
1st Line Infantry Regiment, Infantry, (1/2) Musket
6th Line Infantry Regiment, Infantry (1/2) Musket
1st Light Artillery Battery, Medium Artillery, (1/1) 4#
Left Flank Brigade, Noriega (Average)
4th Line Infantry Regiment, Infantry (1/2) Musket
10th Line Infantry Regiment, Infantry (1/2) Musket
2nd Artillery Battery, Heavy Artillery, (1/1) 8#
Cavalry Brigade, Torrejon (Good)
1st Cavalry Regiment, Cavalry, (0/3) Escopeta/Lance
7th Cavalry Regiment, Cavalry, (0/3) Escopeta/Lance
Presidential Cavalry, Cavalry, (0/2) Escopeta/Lance
Mounted Auxiliary of las Villas Del Norte, Cavalry, (0/2) Escopeta/Lance
Vaquero Cavalry, Cavalry, (-/1), Lance.
Vaquero Cavalry, Cavalry, (-/1), Lance.
3rd Light Artillery Battery, Medium Artillery, (1/1) 4#