And also the burn rate of the ammo in question and how much you have. If you regularly end your battles low or empty with that weapon, the torso may be the better location for it, but for a weapon where you constantly have a lot of ammo left over -- I'm thinking stuff like the Grasshopper's LRM-5 here -- you might be better served by putting it in the arm.Yes, but the inverse is that your torso is lost and you lose the arm with the gun and any armor/IS it may have provided to soak damage. If that torso also carried energy weapons slots, you may have a dead weight, but the other weapons can still fire. It's a question with no 100% correct answer and is also changed by what chassis and role the unit is built for.