RUSLE2 estimates the erosion, deposition, and sediment transport associated with overland flow.  It does not, for example, estimate erosion by piping from flow internal in the soil.
RUSLE2 is designed to be land use independent.
RUSLE2 IS NOT A CROPLAND EROSION PREDICTION TOOL.
IT WORKS FOR ALL LANDUSE WHERE EROSION OCCURS IN ASSOCIATION WITH OVERLAND FLOW.
RUSLE2 works better on some land uses than on other land uses because of the availability of data to derive parameter values.  Also, it does less on some land uses than other because of spatial variability of cover-management conditions, such as on some disturbed forestland.