SHQ
SHQ started as a range of metal wargames figures, sculpted to a very high standard. They then turned to making metal cast vehicles and artillery, which has grown into a huge range these days. Included are some unusual subjects, such as the Pz IV Bridglayer just as one example, but the photos give only a taster of others. The artillery pieces are very meat, and they naturally do a wide variety of gun crews, vehicle crews and accessories to go with them Well worth checking out.
There is just no substitute for visiting the real battlefields of WW2 in Europe if you have an opportunity to do so.
Links to other Small Scale Scene sites:-
Small Scale Scene Main Site
Military Modelling website
Section 2 - Normandy, Battlefields and even more models...
Small Scale Scene - The Real Battlefields