Hey thanks for your reply…sounds great that you maybe could program some!,I found some midi loops mapped to BB and the packs include those blast beats so needed for extreme metal,here are some links ,one is the complete metal pack,and the other is what I tried first which is a beatbuddy mapped demo pack with all styles including metal,I have my beat buddy all programmed with a set that I used with the metal pack and the manager software to make a folder for live shows
http://groovemonkee.com/products/beatbuddy-drum-loop-freebie
http://groovemonkee.com/collections/midi-loops/products/metal-midi-drum-loops