I remember renting out a game from Family Video (RIP) for my PS2 many years ago, probably over a decade now actually, and you could steal any vehicle and even sell it to some guys for money, which you could use to order more vehicles. I also remember there being a ZSU 57, or maybe the chinese version, the WZ305, in the game, which was one of my favorite tanks to drive due to it's twin 57mm cannons firing quite fast. I think the guys you sold the vehicles too were the russian mafia, and all you had to do was drive it into their garage. I loved stealing a bus full of people and selling it to them, that was quite hilarious. My question is, was it Mercenaries 1, 2, or a different game?