Odasan c is another example for roof camping.
One spawn has easy access to about 3 roofs which they are able to reach by foot during the first 30 seconds and usually about 4-5 ranged stay on those roofs for the whole map. The other has no access to roofs on their side of the map which makes them end up by getting shot from 2 sides until they're able to reach those roofs (usually they can only do that once they defeat the infantry of the other team).
Neither fun as cav.