I have been having some trouble tearing through the armor of the Brets, and very few things can out charge them. Any info would be nice, the bloodline doesnt matter so just give me what ya got. Thanks.

Try to get a lot of cheap units, dont forget to summon some. Try to get fell bats withen 8 inches behind some of them, it will break their combat line, so some units will charge alone and its easyer to take care of one units by one units.