In terms of Medical Services in the area....
WMAS Main hubs are:
Erdington
Coventry
Willenhall
Hollymoor
These have large numbers of vehicles stationed at them including ERA'S, RRV'S, ICV'S and a few specialist vehicles.
Then there are Community Ambulance Station's, They are hard to find and a lot of them are decommissioned. The definitely existing ones are: Aston, Stourbridge, Birmingham Airport and Dudley. There are a lot more and they are mostly at fire stations so what I have done is evenly spread out ambulances and RRV's throughout the area. I think its something like 1 in 4 fire stations i have ambulance stationed there also.
There is also a HART base which is in oldbury. It also is the home to MERIT and 2 CCT's from Midlands Care Team Charity.
I also have the three Midlands Air Ambulances with there CCT cars. These are stationed at RAF Cosford, Strensham Services and Tatenhill. There are also two more air ambulance run by the Air Ambulance Charity based at Coventry and East Midlands Airport.
Finally, I have a Saint Johns ambulance depot in West Bromwich.
WMAS does cover a larger area but I only cover the actual county of the West Midlands but hopefully that is useful.