Opinions and ideas wanted - cupolas

[Marek_Tucan]

I am currently toying with WW2 OOB's, namely tring to finetune my variant of Czechoslovakian OOB. Of course I have tried to model the border fortifications as gwell as is possible, but now I am standing against a problem.
The problem is called cupola. Something like this:


There were three basic types used:
Observation cupola (ZP)
LMG Cupola (ZN)
and MMG cupola (KD, KM)
The last one doesn't pose any problem, as its fields of fire were usually rather narrow, but the first ones are a bit problematic.
Typical observation cupola got a field of view 120-180 degrees, LMG cupolas ranged from 120 to 360 degrees.
So, how would it be better to model them?
Since field of view of a vixed unit in SP is 60 degrees, there are (basically) two options:
1) Rotating turret
2) multiple fixed units (to simulate say cupola with 180° field of fire, you'd have to have three separate units facing at different directions)

Pluses and minuses of each solution are cler. Turret allows one weapon to have desired field of fire, but OTOH allows it to have even greater field of fire than is possible, what comes in as a problem esp. in close-in combat where even terrain modelling blocking "undesirable" arcs doesn't work (not to mention other problems). Multiple units allow to create field of fire shaped as needed, but OTOH they mean more guns than IRL and offer possibility to fire in more directions than would one weapon realistically allow. This can be cured by player by switching off weapons in momentarily unused directions, however AI will happily blaze all guns. EDIT: Not to mention that knocking out one "section" doesn't automatically incapacitate the others.

So now I am asking y'all to state your opinions. Which solution is better IYO? I am inclining to the solution 2 but I'll be glad to see your takes on the matter.