For late period Russians, both Guard and Army ….
1st Shef's and 3rd Commander's Grenadier, Fusilier or Muskeeter battalions would from in 8 platoons : (from right to left) Grenadier Platoon, 1. Center Platoon, 2. Center Platoon, 3. Center Platoon, 4. Center Platoon, 5. Center Platoon, 6. Center Platoon, Marksmen Platoon. The Center Platoons (and the battalion itself) would be termed Grenadier in the Life-Grenadier regiment, Fusilier in Grenadier regiments and Musketeer in Infantry regiments.
Between the 3. and 4. Center Platoons (both when deployed and when in a column of platoons) would be the Banner Group, formed as follows:
SSUPUSS
SSXXXSS
SSUPUSS
S = grenadier, fusilier or musketeer (soldier rank) : 3 chosen men from each company in the battalion
U = "junior under-officer" (corporal rank)) : 1 chosen man from each company in the battalion
P = "portupey-praporshchik" (literally "bearer-ensign", a noble officer candidate with sergeant rank) with the flag : 2 chosen from among the 4 in the battalion
X = empty placeholder, called "void"
In the 1st Shef's Battalion, the front flag was the "white" cross, and the rear flag the "colored" cross. The 2nd Replacement and 3rd Commander's battalions had 2 flags with the "colored" cross.
2nd Replacement Fusilier or Muskeeter battalions, if taking the field apart from the "active" battalions of the regiment, would form in 6 platoons : as above, but without the Grenadier and Marksmen platoons. They did carry flags, in a Banner Group, as per the diagram above.
The Guard's 2nd Battalions served with together with 1st and 3rd Battalions.
The Guard did also send a detachment depot troops into the field in a Combined Guard Battalion of 6 platoons. No flag, but likely did form a Banner Group (as per Combined Grenadier battalions).
Combined Grenadier battalions (formed from the combining of Grenadier companies of 2nd Replacement battalions of regiments in the same division) would form in 6 platoons : (from right to left) Grenadier Platoon from jäger regiment, Grenadier Platoon from senior heavy regiment, Grenadier Platoon from junior heavy regiment, Marksmen Platoon from junior heavy regiment, Marksmen Platoon from senior heavy regiment, Marksmen Platoon from jäger regiment. Although they did not carry flags into the field, the still formed a Banner Group as per the diagram above.
The Guard did not have Combined Grenadier battalions.
Jäger battalions, which carried no flag in the field, did still form a Banner Group, but without the two ranks of chosen soldiers marked "S" in the diagram above. Their Center Platoons were called, naturally, Jäger. The jäger officer candidate was called "portupey-yunker".
4th Reserve Battalions, formed of 6 Recruit Platoons, had no flags and did not form Banner Groups. They entered into combat operations only under the most unusual conditions (the 4th Reserve Battalion of the 10th Jäger regiment was called to service on the Polish border, some of the 4th Reserve battalions of the Taganrog recruit depot were fielded in the Caucasus, etc.)
The Guard and Army Grenadier regiments did not have 4th Reserve Battalions.
When defiling in parade formations, the Banner Group is sometimes shown at the head of the battalion, after the battalion commander. This does not seem to be found in the regulations and may be artistic license. In open square, the Banner Group was, naturally, inside the square.