EDIT: these 2 version are actually viable even in FP, but the major drawback is hardpoint positioning. This variant is best used in mid ranged hot maps. It's the classic vomit laser / poker build, but with a Light Engine, identical cooling, somewhat slower and slightly less armored than the XL version. Since it does have 2xLPL instead of 3, the alfa is 45 instead of 50, but it comes with increased survivability thanks to the LE engine. I think this version is slightly more fitted for PUGs than FW, but I think it can work pretty well in both game modes. The alt is simple: downgrade the engine to a LE320, max the armor (-2 points, maybe the head) and fit a TC1 or an additional JJ. You will have one less DHS, but increased range or jump distance/height.
5/5, Good laservom with great peeking and survivability due to LE. Best build on the variant that doesn't use HPPCs ;P