I've been playing around a bit with Eagle and Viper and am really irritated by their power starvation. They get this one weapon mount more than their multirole peer (Eagle-Sidey, Viper-Adder), fairly capable power distributor and a wellsized internal compartment for shields, but all of that needs power. Power that that little power plant just can't deliver. Let's compare Eagle and Sidey, all A. Sidey can run dual rails just fine, Eagle gets power starved with anything greater than one beam and two multis (again, with all A modules). Eagle needs a class 3 powerplant. Even with that you still couldn't run it with 3 rails, as that would still exceed the 12MW power of the class 3 plant. Viper is similar, it needs a class 4. And probably the Vulture will be just as starved.