So, a storm bolter is two linked bolters, and has the ability to add a hit per degree of sucess if used on full auto, or a hit per two degrees of success if used on semi-auto, all of that while eating twice as much ammo.
Meanwhile, twin-linked weapons give a +20% to hit, and an additional hit if the attack reached two or more degrees of sucess, again eating twice as much ammo (and taking twice the normal time to reload).
So my question is, can you twin-link two storm bolters, for a weapon with +20% to hit, x4 ammo consumption, an extra hit when it gets 2+ degrees of sucess and an extra hit per degree of sucess while fired on full auto or an extra hit per two degrees of sucess while fired on semi-auto, and doubling the reload time?
I think I saw linked storm bolters in Space Marine vehicles (I think the Land Raider Crusade uses them), and the rules doesn't prevent this combination to be made (explicitely, at least), and of course that would weight 18 Kg (mind you, I would upgrade the weapon to Heavy instead of keeping it at Basic XD), but I'd like to hear your ideas.
. Since the combination is not explicitly denied I would say go for it. But limit it to vehicles ( or heavy combat cyborgs ) to keep things in perspective.
The ultimate annihilate the enemy infantry's first wave weapon. Sheesh!