Forgive me If this question was already answered for several times, but I couldn't find anything about it even on wiki.
Does drop-rate somehow connected to difficulty? Playing only on "Hey, Not Too Rough", descended to Hell 6, visited almost all unique levels, but nothing of real value was found. Yes, I have some unique levels guaranteed special items like Missile Launcher, BFG9k, Longinus Spear, but almost none of randomly dropped specials. No special mods, four special armors(only one unique and three low-tier exotics), about two special guns(combat pistol, acid gun). Maybe I should switch to harder difficulty for better drop?