So this brigade concist of 3 regiments with 1 to 4 squadrons, but all regiments are close to 340 men in strength.
I see 3 ways.
1. 1 squadron each, giving then 1 base each dismounted. That would make them very brittle
2. 2 regiments of 1 squadron, and take the left overs and give it to the third regiment and make it a 2 squadrons 2 dismounted base unit.
3. Delete the 3rd regiment and make two 2 squadrons regiments.
Because the total strength of the brigade would be 24 figures or 4 BLB squadrons.
I'm leaning towards 3. As it would make them less brittle as 2 dismounted bases.
But it would mean less uniform variety!