To the first one, no you cant.
To the second one, only if the ltb and dtx files are compatible.
Well, i was thinking and i came up with this...: Could we mod a gun with the RoF of one gun, and make it look like another?
Also, Could we make modded guns from diffrent games?
Veni, Vidi, Vici.
you can model switch, so u can make one gun LOOK like another
importing from other games are gay unless its a game like halo