Miniguns fire 6000 rounds a minute, you'd be hard pressed getting enough 7.62's to make it worthwhile.@Riamus How about a minigun that is mountableand uses the 7.62 rounds as well
In the end, if it's basically just another automated turret, it's not that different. I'm not against that, but I'd still prefer something that is visually distinct both in looks and how it kills. We already got a 7.62mm turret, so a minigun using it wouldn't even be as unique as it would have been before 3.0. Now, if it was a mounted gun that only fired if you were there manually firing it, then that could be interesting. But that might end up being too powerful even if the cost was high in ammo.@Riamus How about a minigun that is mountableand uses the 7.62 rounds as well