Sorry for the nostalgic Battletech detour.
Lets talk cold war tanking. Back on track!!
For the Chinese armor, the base coat is Krylon #4295 'Sand" spray paint. Flames of War 'DAK Sand' CWP212 is a very close match if Krylon is not available in your area.
The two greens are Testors Model master enamal #1710 'Dark Green' FS 34079 and #1715 'Interior Green' FS 34151.
Both are airbrushed over the Sand base then all panels are inked in. A fine drybrush of Deco-art acrylic 'Buttermilk' is used to highlight the edges and mute the tone.
The decals came from China via Ebay.Easy Decal brand #5724.
The two Hummer clones are Miasto Diecasts. The Chinese EQ2050 series is a copy of the GM hummer. They almost exactly matched the colors shown in Tankograd #7029 so I matched the colors of my tanks to the color on the Maisto factory paintjobs.