Destroy 30 objects in 60 seconds. (3)

There are many destroyable objects in this game that count towards this trophy, things such as: Lamp posts, cars, boxes, gas pumps, fuel depots, barrels, statues etc.

Just destroy as many of them as you can in the shortest amount of time, you should then get the required amount within 60 seconds. Here are two places where you can get this:
During Mission 1 When you pick up the second memory card there is an AA gun right next to it. Enter the gun and shoot at everything you see.

During Mission 3 You will be walking around a temple with a Gatling gun. There are a lot of small pillars here, all are breakable & all count towards this trophy. So just shoot all the ones you can see and you will most certainly destroy 30 objects in 60 seconds