I found the vanilla balance for tech costs didn't work well with Proficiency Class Pack: Marines can get away with Rifles just fine and it's more cost efficient to spec your Marksmen for Vektor Rifles than to buy the higher tier snipers.

I rebalanced the supply costs of the late game weapons with this in mind, keeping the overall total the same.

Assault Rifles and Bullpups now make up the bulk of your resource costs.
Cannons, Sniper Rifles and Vektor Rifles, as optional weapons, are much cheaper.
Shotguns are somewhere in between, given they're a powerful option for two classes but by no means mandatory.


I reckon this might be useful to someone else so I figured I'd share.

Stick these lines in your XCOMStrategyTuning.ini if you want to use them.

Diff_2 refers to Commander. If you're playing on Rookie or Veteran, change it to Diff_0 or Diff_1. Legendary uses its own pricing systems.

[AssaultRifle_MG_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=85), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=15))

[Bullpup_MG_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=85), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=10))

[Shotgun_MG_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=75), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=5))

[Cannon_MG_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=55), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=10))

[SniperRifle_MG_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=55), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=10))

[VektorRifle_MG_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=55), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=5))

[AssaultRifle_BM_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=175), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=20), ResourceCosts[2]=(ItemTemplateName="EleriumDust", Quantity=15))

[Bullpup_BM_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=175), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=20), ResourceCosts[2]=(ItemTemplateName="EleriumDust", Quantity=10))

[Shotgun_BM_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=145), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=10), ResourceCosts[2]=(ItemTemplateName="EleriumDust", Quantity=10))

[Cannon_BM_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=110), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=20), ResourceCosts[2]=(ItemTemplateName="EleriumDust", Quantity=10))

[SniperRifle_BM_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=110), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=20), ResourceCosts[2]=(ItemTemplateName="EleriumDust", Quantity=10))

[VektorRifle_BM_Schematic_Diff_2 X2SchematicTemplate]
+Cost=(ResourceCosts[0]=(ItemTemplateName="Supplies", Quantity=110), ResourceCosts[1]=(ItemTemplateName="AlienAlloy", Quantity=7), ResourceCosts[2]=(ItemTemplateName="EleriumDust", Quantity=7))