DLD Productions
Check out the Civet, Raven, and Bengal especially,
though for your lower tech forces the Badger and
the Kamodos are great. When I say DLD puts out
the finest resins, I'm not kidding. They matched
the best armourcast ever did for quality and for
detail they kick their arse (esp if you buy some
of the extra detailing goodies). These are fairly
complex (ie model like) kits, unlike GZG's vehicles (The SG25 vehicles are pretty slick,
like the Wombat APC, the Gladiator tank, and
quite a few others) which are usually two to five
bits which are poured in (still good, look fine
painted, but not really in the league with the DLD stuff - David works doing SFX stuff for the movies or something like that as a day job and it shows in what he does for DLD).
So if you need some vehicles, check out GZG and
DLD.