Rare, US 3rd Brigade, 2nd Armor Division (Forward) consists of the following units:

3rd Battalion, 41st Infantry Regiment (Mechanized) [M113 APC]
4th Battalion, 41st Infantry Regiment (Mechanized) [M113 APC]
2nd Battalion, 66th Armored Regiment (Iron Knights) [M60A3 MBT]
4th Battalion, 3rd Field Artillery Regiment [M109 155mm SP]
C Troop, 2nd Squadron, 1st Cavalry Regiment [M60, M113 & M901 ITV]
498th Forward Support Battalion [A Co. Trans., B Co. Maint., C Co. Medical]
D Company, 17th Engineer Battalion [M113 APC]
588th Military Intelligence Company
Military police platoon 
Aviation detachment [4x AH-1 Attack Helicopters & 2 OH-58C Observation Helicopter]

I can help you with details on any of these units. I took B Company, 3rd Battalion, 41st Infantry (Mech). B/3-41 IN is Attached to 2-66 AR for this operation. C/2-66 AR is attached to 3-41 IN. My 3rd Platoon is attached to some company in 2-66 AR and I have 3rd Platoon, B/2-66 AR attached to my company. I also have a squad of engineers from D/17 EN and a Fire Support Team (FIST) from 4-3 FA. If you do a Company, you will also get a FIST team. As a suggestion, you could take A, B or D Company of 2-66 AR and 3rd Platoon, B/3-41 IN as your unit. With that said, you could take A or D Company with three armor platoons + the Mech Infantry platoon or B Company with 2 AR platoons + the Mech Infantry platoon.

If you take one of the 2-66 AR Companies, you could then be an adjacent unit to mine. We could collaborate on enemy contact.

I am more than willing to help.