Camping Guns and Run and Gun Guns... Guns...

I have a question:

What is a good gun for close distance and long distance:
CD:
AK-Knife
RPK-Camo

LD:
AWM-Camo
PPSH-R... Sniper rifle... Forgot what it's called.

And what is the best gun to gun and run with:

Ak-Knife
RPK-Camo
M4a1-silver
M4a1-Advanced