I have to agree with Craig on this one
Knowing how to aim a small hand gun is by far the same as aiming and handeling a bigger weapon. (Learned this in the army).
Knowing how to fire a rifle didn't make me better at firering anti-tank weapons or lighter machineguns even.
Of couse you know wich way to point it and sometimes what trigger to pull (sometimes
)
I don't like a merging of gun skills
(not that likely will stop me from playing it )