Blenheim defensive moves?

[senseispcc]

The Blenheim was not a bad bomber but a light bomber or a bad fighter. in 1936 a very fast bomber, in 1940 a not so fast bomber, in 1942 a slow bomber but never a big bomber or a long range one. This plane had never enough armament, guns or bombs. The little under nose Frazer Nash two .303 machines guns was a defensive weapon but the fighter version had four .303 machine guns firing forward in a turret on the underside of the center fuselage for the MKI or IV.