Despite the dangers of staring at an opponent for too long with the Orion, this build works amazingly well for me. Right now it's the only mech I have with a k/d ratio of greater than 2.0. The two UACs put out lots of dakka which can punch holes or drive opponents to cover. The three medium lasers help add damage in close, though have to be used carefully due to the increased heat buildup with sustained fire. The streaks are fairly invaluable for light defense, particularly when used in concert with the mediums. With the standard engine it's fairly survivable, though expect to lose the right torso on a regular basis when in close.