Here we go. Regarding the variant, I'm still not sure about the howitzer balance, but bear in mind the resulting BV and weapon equivalency is when BARs above 5 come into play. For WW2-only balance, things work quite differently.
NEW OLD EQUIPMENT OVERVIEW
Short-Barrel 75mm (Short 75)
Support Vees only. Tech Level B.
600kg, 10kg/shot. 5 damage vs. BAR 5, plus 1d6 against BAR 4 and below. Range 2/8/16/24(125).
Above BAR 5, treat as a Mech-Mounted Medium Recoilless, with the appropriate BV and cost.
May fire indirectly as Artillery vs BAR 5 and below, max range 9 mapsheets.
Char B1 bis
(IS Medium Support Vehicle)
Mass: 31 tons
Tech Base: Inner Sphere
Tech Rating: B
Motive Type: Tracked
Rules Level: Experimental Tech
Era: All Eras (non-canon)
Production Year: 1937
Cost: 130,100 C-Bills
Battle Value: 150
Construction Options: Fractional Accounting
Power Plant: 229kW Renault V12
Cruise Speed: 21.6 kph
Flanking Speed: 32.4 kph
Armor: 15-60mm
Armament:
Short-barrel 75mm SA35 ABS L17/1 Howitzer
47mm SA35 L/32 AT gun
Reibel 7.5 mm MG
Manufacturer: Renault, FAMH, Schneider, FCM
Primary Factory: France, Terra (discontinued 1940)
Communications System: Basic radio
Targeting and Tracking System: None
================================================================================
Equipment Type Rating Mass
--------------------------------------------------------------------------------
Internal Structure: Support (Tech Level B) 20 points 10.881
Engine: ICE (Tech Level B) 6.448
Cruise MP: 2
Flank MP: 3
Crew: 4
Fuel: 180km 0.117
Turret: 0.500
Armor: BAR 5 (Tech Level B) 66 pts 4.158
Armor Internal
Factor Structure
Front 15 4
Left/Right 12/12 4/4
Turret 15 4
Rear 12 4
================================================================================
Equipment Location Heat Spaces Mass
--------------------------------------------------------------------------------
47mm Cannon TU 3 1 1.000
@47mm (72) BD - 0 0.108
Short 75mm Gun FR 3 1 0.600
@Sh75 (74) BD - 0 0.740
7.5mm MG TU 0 1 0.020
@7.5mm MG (5,250) BD - 0 0.210
178kg extra fuel BD - 0 0.178
Char B1 Bis:
Work on what would become the Char B1 began in the years after World War I, which can be seen in many of the aspects of the tank's design. The interminable delays in development and production over the course of fifteen years led to the tank being an expensive, overcomplicated, overengineered, gas-guzzling hodge-podge of an armored vehicle. Nonetheless, it remained one of the most effective tanks the Allies had access to in the early part of World War II, in part due to its highly robust construction and thick-for-its-day armor.
Indeed, that armor was often the B1's saving grace. The improved 'bis' version, which saw the vast majority of production, had increased armor over the first run of B1s by roughly 50 percent, though there were still a few dozen early B1s running around by 1940. (Char B1: 28T, 44 pts armor, slight differences in ammo. BV 114; cost 112,858 C-Bills.) Most German tank-mounted guns had extreme trouble penetrating this armor, leading to high losses among German units in the rare instances that the French could deploy and support B1 tank units properly.
The weaponry was quite good by early-war standards, as well, but it had some issues. A short-barreled 75-millimeter howitzer was the main gun of the B1; the near-total lack of horizontal traverse for this weapon made it difficult to use against mobile targets. When the French realized they would have to engage other tanks with some regularity, it was too late to redesign the entire chassis, so the turret-mounted gun became a 47-millimeter, which was sufficient for the time. However, the turret was a small, one-man turret, which meant the commander had to not only command, but also load and fire the weapon. This was a glaring flaw which made it difficult for the B1 to perform as well in practice as it ought to have on paper.
The B1 bis acquitted itself surprisingly well against German armor during the invasion of France whenever the French could engage the Wehrmacht in a stand-up fight. In one infamous instance at Stonne, a single B1 took out thirteen Panzer IIIs and IVs and lived to fight another day. However, the French Army found it very difficult to deploy or support these slow tanks effectively, and the Germans were often able to flank them, hit them from afar with artillery or air attacks, or simply deprive these gas-hungry, breakdown-prone vehicles of fuel and spare parts.
When the battle for France was over, the Germans made use of the surviving B1 chassis. Sixty were modified with flamethrowers (Flammwagen B2(f): Replace Short75 with vFlamer/@(20), and replace the 7.5MG with 7.92MG/@(3200). BV 140; cost 131,501 C-bills.) and another sixteen were given larger howitzers and used as artillery support (10.5cm auf B2(f): No turret, replace all weapons with 105mm Howitzer/@(40) and 7.92MG/@(3200). BV 110; cost 128,024 C-bills.) The Germans found all of these disappointing in practice due to their mechanical unreliability and fuel consumption, but the base model was still considered tough enough to be used on the Eastern Front until the Soviets began rolling out tanks with larger cannons. Several B1s were recaptured and operated by Free French forces after Allied forces began liberating France in 1944. The last of these machines were retired roughly a year after the war's end.
Slots: 9
Base chassis value: 0.15
Structure tech level: B (x1.3)
Armored Chassis (x1.5)
31,000kg * 0.15 * 1.3 * 1.5 * 1.2
CHASSIS WEIGHT: 10,881kg
Base engine value: 0.013
yes turret
Engine weight: 31 x 0.013 x 8 x 2(ICE tech B) = 6,448kg
Fuel (180km): 0.018 x 6,448kg = 117kg fuel
carried 400L IRL, equal to 295kg total
so another 178kg
Crew: 4
Max armor: 66
66 pts BAR 5 armor: 66x63 = 4,158kg
BV2 calculations
Armor (BAR 5) 82.5
66 pts * 2.5 * 0.5
Internals 30.0
20 pts * 1.5
Def equipment 0.0
Vee Type (Trk) x 0.9
Def Factor x 1.1
---------------------
Def BV2 111.375
Weapon BV
47mm (MedRR) 19.0
@47mm (0.108T) 0.540
Sh75 (MedRR) 19.0
@Sh75 (0.74T) 3.7
Vintage MG 1.0
@vMG (0.21x) 0.105
No FCS x 0.8
Tonnage / 2 15.5
Speed factor x 0.77
---------------------
Off BV2 38.63552
Total BV2 150.01052 -> (150)
Chassis [2.5k * 10.881T * 2 (Arm) * 1.1 (Trc)] 59,845.50
Engine - ICE [5k * 6.448T * 1 (ICE)] 32,240.00
Armor - BAR 5 [200 * 66 pts] 13,200.00
Tech Rating B x 0.75
Base Structure Cost 78,964.125
Heat Sinks (n/a) 0.00
Turret (5k * 0.5T) 2,500.00
Power Amps (n/a) 0.00
Base tank cost 82,656.25
47mm Cannon (MedRecRf) 7,500.00
@47mm (0.108T) 162.00
Short 75mm (MedRecRf) 7,500.00
@Sh75 (0.74T) 1,110.00
Vintage MG 300.00
@vMG (0.21T) 84.00
Cost with weapons 99,312.25
Cost Multiplier x 1.000
Chassis Modifier x 1.310
Dry Cost 130,099.0475
Total Cost 130,100.00
Next, as per a request from my coworker, I'll throw in the SdKfz 251 half-track. It has a lot of variants so it might be a while. Also I'm going on vacation in a couple weeks, so if I don't post it by the 13th, assume it won't show til around the end of the month.