Recently i encountered many players , even premades exploting that bug
LOS bug is basically , if you stant on top of the huttball spawn point , the player cannot be targeted by the enemy spells , or even some melee skills doesnt work if the *exploiter* stands on the correct spot. / also you can capture the ball everytime ball returns to the point...
(and the only way to deal with this ..using aoe (orbital strike ,etc.)
couple of screenshots from the last game
(i got pissed after the exploiters team trolling me like im the one who abusing the bug
http://s14.directupload.net/file/d/2769/ubc7wrun_jpg.htm
http://s1.directupload.net/file/d/2769/eaafrrfw_jpg.htm
http://s14.directupload.net/file/d/2769/enfnz2d7_jpg.htm
http://s14.directupload.net/file/d/2769/pra4shgu_jpg.htm
it would be pretty frustrating fighting against a strong premade who abusing this bug as you can imagine