Ummm, the reason that is not a viable option is... it's very unrealistic.
I mean, come on. How many guns do you know of that have MORE THAN ONE CLIP INSIDE OF THEM? The answer is none. That is why the player must collect said clips and reload when the gun is empty.
If the gun were able to have more than one clip inside of it, then I believe reloading would be obsolete.
Now, about your other question with the dead man's gun, I think that would be a nice thing to have. HOWEVER, when you pick up a guard's gun off the ground, it adds a single clip's worth of ammunition to your ammo. (At least, it did that for the LAST time I played an FPSC game
)
The one and only,
~PlystirE~
Urlforce:
Dude, I'd rather be declared a dbpro noob than an fpsc legend any day!