User blog comment:Legionwrex/The most annoying enemy is the ..../@comment-2036282-20100820005325

IMHO, during the long walk on the Collector base, there is a hardest fight against the scion. It supports crowd of husks and abominations which rush ahead while the scion closes in. You have not so much space to maneuver under the specialist's barrier, so that fight quickly turns into mess on Insanity.