I mostly only play the German faction and only going to speak for them with regards to this suggestion and idea post. I believe the following change is needed for the German SD.Kfz 251 series:
1. Cost Reduction:
The German Sd.Kfz. 251 series most basic unit is comprised of the following at the cost of 39 battle score (BS) for 1st infantry battalion:
1x Sd.Kfz 251
8x Crew/Staff of which 3 are Gunners, 1 Squad Leader, 2 Rifleman, and 2 SMG Infantry.
2 Rifleman = 1.6 (BS)
2 SMG = 2.4 (BS)
1 Squad Leader = Assume Same as 1 SMG = 1.2 (BS)
So in all, the Infantry of the basic Sd.Kfz 251 is worth 5.2 excluding the 3 Gunners (well include them in a moment with micromanage acquisition of the MG-34s). This means that the Sd.Kfz 251 is worth 33.8 (BS). An armored vehicle that can be taken out within a couple hits of an anti tank rifle which is given for free in front line through AI, costs 33.8 (BS). Its main armament is 1x Front Mounted 7.92mm MG-34 and 1x Rear Mounted 7.92mm MG-34. So lets look at the costs of an MG-34 squad.
The MG Squad MG 34 costs 28 of which you get 2x MG Assistants, 2x Machine Gunners, and a Squad Leader. Each unit costs 5.6 (BS). So we can say that of the 33.8 (BS) of the Sd.Kfz 251, 11.2 is the Machine Gunners of that vehicle. That puts the cost of the Sd.Kfz 251 at 22.6 (BS) by itself. That is more expensive than a BF-109. More expensive than a Minenraumpanzer 3 (minesweeper tank). 22.6 (BS) in the same battalion equals 5 squads of Rifleman or 25 Rifleman in total. So one Sd.Kfz 251 without machine guns equals 25 rifleman who come equipped with sandbags, shovels, at grenade, and ap grenades. For some reason as well, the Sd.Kfz. 251/1 is more expensive than the Sd.Kfz. 251/17 which comes equipped with a 20mm autocannon which is 23 (BS) by itself making the Sd.Kfz. 251 cost 7 (BS). Why does the Sd.Kfz. 251/17 vehicle cost 7 (BS) and the Sd.Kfz. 251/1 vehicle cost 22.6 (BS)? Something isnt adding up here.
I propose that the basic Sd.Kfz. 251/1 be reduced by 15 (BS) putting it a general (BS) of 24. Which I think is a fair price for what you get.
1x Sd.Kfz. 251/1 = 7 (BS)
2x Machine Gunners = 11.1 (BS)
5 Infantry = 5.2 (BS)
Which equals... 24 (23.3 actually but well round up)