Only for fighting the industrial countries. Most countries back then weren't as industrialized, afaik. Strategic bombers were limited in their ability back then to hit things smaller than cities. Nowadays the few heavy bombers that exist can perform surgical strikes by carrying a bunch of cruise missiles. The Allies appear to have had the tendency to use Fighters, Light and Medium Bombers to attack tactical targets such as dug in troops, railways, bridges, Army formations.
The Luftwaffe seemed to want to use a bomber that was more multirole capable. Like the He-111 which was used to bomb industrial areas, ground support, as a Torpedo Bomber, and a few existed that could be armed with the V-1 Glide Bomb.