Questions on how I should upgrade my infantry

[runequester]

Soviet long campaign. I have 2 companies of infantry.

As the campaign goes on, I will have various infantry weapons available, and I figure I'll do one upgrade in the campaign for each squad.

Now, I know I'll want both some SVT equipped grunts and some SMG troops.

Do I:

1: Do it by company (automatic rifle company and a assault/SMG company)

2: Do it by platoon (maybe one SVT platoon, one bolt action platoon and one SMG platoon per company)

3: Do it by squad (maybe two SVT, one bolt action, one SMG squad per platoon)


Suggestions ? 3 seems more realistic in the big picture (once we ignore that the soviets never realized their plan of outfitting everyone with SVT's) but may be less useful on the battlefield.