Been a Death Metal fan for over 20 years. All it really means is that I'm old haha but I think if you havent checked the following bands out you should....
Pyrexia
Brain Drill
Dehumanized
Hypocrisy (I'm sure if you clicked this thread you know them though
)
Animals Killing People
Beheaded
Bolt Thrower... When I think Death Metal that comes comes to mind first!!