You'll get what you are after and more here:
http://stasf2008.ephpbb.com/t6-steel...steel-fury-1-2Forget about the SPM mod and the unofficial patch - they're usable but unless you fancy running a second install for them, have long been overtaken in terms of content. The latest STA mod is the one to have, nowadays.
IIRC you need to register on the above site, for all the D/L links to work. Be careful to follow the JSGME enabling order for the different elements, described as the 'installation order' in the above post.
Many of the playable vehicles are illustrated in this thread:
http://stasf2008.ephpbb.com/t22-avai...its-in-sta-mod(same reply posted on Tanksim.com also)