_ Think I've finally found a build that I like for the Siren, almost matching velocities on the Light Gauss and ER PPC's, all left sided for right side shield and has jump jets for a bit of pop tarting. You could drop the engine for more armour but this is an engine I had lying around so I'm going to stick with it for now. a LE 315 could give you a third jump jet or full armour on the right arm.