Hidden areas that will give you a killer edge in multiplayer
1: High traffic area
This is one fantastic area for planting Claymores or Bouncing Betties as this is a very busy area no matter what the game mode is. Plant a booby trap in the middle of the narrow tunnel leading to the west and plant a second one near the grass on the narros northern pathway.
2: Corner Control
Whilst not the busiest of areas, on modes like kill confirmed, controlling this eastern region of the map will prevent your team from getting flanked from behind as the narrow path up ahead is very popular.