MGP
I take it you are not from the fire service so I will try and explain.
The original ranks have been replaced by roles, though this is still (officially) only for pay purpases at present, the full change is imminent.
The original ranks were:
Ff, LFf, SubO, StnO, ADO, DO (I, II, III), SDO, ACO and CFO - there was also a DCFO (though strictly not a rank it became so). The DACO you mention was a London only made up one.
The roles are:
Firefighter, Crew manager, Watch manager, Station manager, Group manager, Area manager and Brigade manager.
For pay purposes - ONLY the following presently applies:
Rank structure to the new role-based structure:
Firefighter Firefighter
Leading Firefighter Crew Manager
Sub-Officer Watch Manager (competent A)
Station Officer
(Rider Station Officer or specialist not on flexible duty system) Watch Manager (competent B)
Station Officer (On flexible duty system) Station Manager (competent A)
Assistant Divisional Officer
(Not responsible for a group of stations) Station Manager (competent B)
Assistant Divisional Officer
(Responsible for a group of stations) Group Manager (competent A)
Divisional Officer III Group Manager (competent A)
Divisional Officer II Group Manager (competent B)
Divisional Officer I Area Manager (competent A)
Senior Divisional Officer Area Manager (competent B)
You will see that, in order to incorporate all the original ranks, there are nearly as many pay points by using A and B scales within most roles.
For the roles here is a (very) brief outline, for more look at the role maps (and national occupational standards) on
http://www.ipds.co.uk/news.php?id=55Ff = firefighter
CM = a crew manager, working under a watch manager - so applies to the second in charge of a watch. For services that had StnO riders and SubO on second pumps then this really is the SubO role.
WM = watch manager - either existing SubO or StnO depending on the service (many have not had StnO riders for a long time)
SM = station manager (probably Flexi StnO or ADo depending on service) - the person manging the station, or group of WMs
GM = group manager - the person managing a group of stations, or SMs - probably ADO or DO depending on service
AM = area manager responsible for an area of the service, or maybe group of GMs, probably an DOI, SDO or even ACO in some services
BM = clearly brigade amanger, etc.
You will see that some services 'ranks' will not correlate to the role the same in the same level as others. For example the rider StnO is definitley a watch manager, yet in other services this position has been the responsibility of a person paid at SubO. They do the same role. This applies to any other 'ranks' to roles so the final position may cause some realignments of the pay scale compared to the 'pay purposes ONLY' present position. I can see the seperate A and B scale posts being revised, work on determining how these are decided is presently underway (job sizing - same role different size). This should bring the relevant roles into same pay scales, so the service where the WM has been paid at StnO and that where the same role received SubO will come to be the same.
So does this explain it, perhaps a chat with someone from a fire service could make it clearer, but pick someone who is not still fully tied tot he ranks, they haven't been keeping up with their own jobs!
Last point your 'chief' well he is now clealry a Brigade manager. But there will probably be more than one of them so how they will show which BM is the top BM I am unsure! I assume that you should look for the BM (B) but therein lies another debate!
PS if you are form within the service, Wakey, wakey, Rip VW. Rise and shine, long sleep eh?!