[raygun]

As nearest as I can tell it appears that the campaign is fully functional with v5.0 obat012.obt I took a survey of all the units in the HQ menu and it appears that ALL airmobile units are issued radios (as do all heavy weapons sections). However, while some MMG sections have radio most do not.

It appears those are the facts: airmobile units of the period were issued radios (as are some MMG sectoins - and ALL heavy weapons section) Whether they retain their radios, or not, is an entirely different story and probably is predicated to some degree on their experience and morale statistic. Moreover, a unit that lost its radio may find one lying around and pick up a radio that it had previously dropped (or dropped by some other unit), if said unit enters a hex where the radio was dropped? I'm guessing that'd be dependent on both experience and morale, i.e., suppression at the time of finding the radio, eh?

Dunno if any of that is historically accurate, or is reflective of the contemporary v5 obat012.obt (doesn't seem to make a difference in any case which obat I use: the issuing of radios to the units as described above remains the same).