lol chimera assault deffinently. i usually face them head on as i like with any enemy but when there are more,especially the echidna mission in legendary dark knight lol! i have to run around shooting them with guns for some time and it really ruins it. the only thing that can be a fraction as annoying are cutlasses. i really hate what i cannot hit. the best dante strategy i have with cutlass is evade and charge shot from coyote-a in short distance while they are airborn which renders them useless for a time and in devil trigger,a stinger through a group of them and quickly kill with gilgamesh before they come to annoy again..