There is balance if this were applied to Enlisted when you understand that the US Rifle Squads only had one BAR, and the rest had M1 Garands. The British, on the other hand, were able to have a Sten and a Bren gun. You are trading two soldiers for more variety of weapons in your squad.
The Soviets had at least three soldiers in their Rifle Squads equipped with a PPSh 41 or PPS 43. So, for the price of three soldiers, you could carry three PPSh 41s, DP-27, and five M91/30 Mosins in your squad.
The Germans had two soldiers who could carry an MP40 and one soldier with an MG-34/MG-42. The rest were riflemen. So, for the price of losing two soldiers, they could receive two MP40s, an MG of their choice, and seven riflemen.
The Japanese had one soldier with a Nambu Type 96 or Nambu Type 99; the rest were riflemen. So, for having 12 soldiers, they receive one MG of their choice and eleven riflemen.
So, with this information, rifle squads would look like this:
US Army
Spoiler
- 1 Machine gunner; 11 Riflemen
British
Spoiler
- 1 Machine Gunner; 1 Assaulter; 8 Riflemen
Soviets
Spoiler
1 Machine Gunner; 3 or more Assaulters; 5 Riflemen
Germans
Spoiler
- 1 Machine Gunner; 2 Assaulters; 7 Riflemen
Japanese
Spoiler
- 1 Machine Gunner; 11 Riflemen
In conclusion, there is a trade-off between manpower and versatility; thus, there is balance if this direction is taken. However, the point of mentioning the size of rifle squads from different armies in WW2 was an example to show that not every country limited the size of their rifle squads to nine men. It was not mentioned for suggesting that certain countries should have the size of their squad increased and not others, or else this thread would be listed as a suggestion. I want to know if there are negative effects if the size of squads in general were increased, that is all.
Why do you keep bringing up milsim games all the time? Are you obsessed with them or something?