[@Irredeemable]  Well, I've made mention of them: The Fallout Sector.

It's sort of a nod to the games themselves, but basically the command structure is different in the Enclave now.  Number One did away with the old system in favor of ranks based more on ability than a standard military hierarchy.  To wit, your basic soldier is of a low rank, someone who's moved on to a more specialized area is mid-range, and the highest are those who are considered the best in their field.  The Fallout Sector was created back in The REALLY Wild Wasteland RP on The Escapist Magazine site, and this is their line-up

Fallout Sector Leader: Cornelius Jack - Leader, most well-rounded fighter in all the Enclave.

Enclave Pyro Elite: Roberto Malcontente' The 3rd (Bob) - Pyro Soldier, specializes in fire and melee fighting.

Enclave Tesla Elite: Greg MacRider - Tesla Soldier, very good at electronics, energy weapon specialist.

Head Engineer: Scotty McLaylen - Enclave Engineer, builds/repairs anything you need, has an extra-heavy suit.

Heavy Trooper Elite: Jonny Bo Drago - Heavy munitions and ordinance officer, impossible to surprise.

Enclave Sniper Elite: David Davidson - Sniper with Stealthboy tech, PlasmUzis, and martial arts training.

These boys work directly under Number One.  They are also able to act autonumously of Number One, to an extent.