Generally speaking, the level features a bombed out highway in New Jersey, USA. It shows signs of significant combat and destruction, suggesting the battle for New Jersey was just as hotly contested as New York and Washington.
Interchange is a medium sized map featured in Call of Duty: Modern Warfare 3. The two main spawn points are on either side of the map.
The map consists of many long lines of sights and few indoor areas. There are many wide-open locations that are great for snipers. There are also quite a few tight corners that may be in favor of close quarters weapons. The underpasses can be used to avoid air support if needed. There are also several crashed vehicles that provide excellent cover.