just make a dnb tune you would consider to be normal then make the beats halftime then rework the tune to it
ive never made a drumtep/blablabla tune before intentionally always make a proper tune into it
what im really sayin is make a good tune fisrt then rework it!haha
If that makes sense. You double the distance between the snares and start them on the 9th beat of the bar instead of the 5th. As with normal dnb... the kicks can go anywhere.