Army of Two (EU)

Requires Veteran Pack DLC (free from marketplace).

The best place to do this is on mission 8 you come to a room which has a huge screen with a picture of salem and rios. In this room there are loads of glass panels and tv screens to destroy but don't start shooting yet reach the lower level (for a checkpoint) clear out all the enemies as if you die you will just have to start again thne start going to town on on everything around, chairs, panes of glass around the walkways, the tv screens (the big screen is made up of loads of little screens as well) and anything destructable. You may need to complete this level twice to get the acheivement but it does count over multiple plays just finish the level and go again.

Another location is on mission 7 you will come across a square room which has a bunch of offices partitioned in the centre with a few other offices around the outsides again just go to town on everything chairs, glass, (only the glass in the centre breaks and around the doors not the glass to the offices around the outsides) cctv cams, clocks, fire extinguishers, T.V's. but there is not as many items as the mission 8 area.

Another tip is conserve any ammo packs on the floor until you need them also if you run out of ammo at any point you can always swap guns with your partner and recieve his gun +ammo.