ROF Question

[Update]

I am wondering: How is the ROF calculated?
(trying to mod some missing devices)

Is it: 1. Weapons cyclic theoretical ROF divided by ten (as seems to be with some of the MG´s)?
2. Case 1. adjusted by ammo capacity, eg. magazine/ammobelt size (as could be with other MG´s)?
3. Cyclic ROF divided by something else such as barrel cooling method, quick change barrel availability etc.?
4. Cyclic ROF divided by secret method (since I cannot come up with a reason for the number)?
5. Some arbitrary number that has slight resemblance to reality?

The reason I am asking is that, for example, MG34 is the same actual weapon but different ROF depending on the role it is used.

[horse1974]

I'm beginning to think it's the No. 5  [:(]

[bcgames]

I'm pretty sure it's number 4. Until the one who knows the equation posts here, we are left with using numbers of comparative systems...which are generally close enough for game purposes.