Where is the M24 in battlefield bad company in campaign

It is in the level, "Par for the Course". In the section of the level where you have to destroy the anti-aircraft guns, you will notice that you are near the lake and a boat with enemies will come and drop them off. You will want to try and shoot the enemies out or it will be a long swim. After that thake the boat to an island in the middle of the lake to find it. It is also located near a gold crate, which you may want to discover.