Other idea,but not only about cons,remove 7men upgrade,after build light armor HQ allow Cons upgrade single DP,T4 have passive reducereinforcement cost same as Ost,Cons and Penal and weapon squad reinforcement cost -2,so maybe could make Penal more useful in later game,also Penal and Cons could support each other like Ost Grenadines with Schreck PG
The dp is a shit idea for the following reasons:
1. Its a shit weapon.
2. It doesn't fit conscripts at all
3.A high durability squad with a weapon designed to make up for low supplemental dps is exactly why cons have 1 slot.
Whats more, your suggestion for the dp plus all the things 7 man already gives introduces the problems listed above while ALSO removing the viability of merge and the theme of conscripts. What exactly is the difference between a single nagant and the health bonus on a holding unit and a dps upgrade in the grand scheme of things? 7man is a much better in the faction as a mechanic and a balance feature. High durability and centralized dps in a recipe for disaster.
Look at the perks attached to 7 man if needed but the ability itself is sound for filling the roles conscripts are supposed to fill- dps is not that role.