First off, a reference pic of the ALL default sniper rifle to help you compare what I did:
Hidden/Spoiler:
CDEF Rifle:
Well you may think, NOT MUCH DIFF for a weap like this. Well I'll leave you to be the judge when you compare:

Quite loyal to the design though:
Hidden/Spoiler:
CREDITS:
-(PANDEMIC) ---> HEAVILY(repeat)HEAVILY geared towards Pandemic. They made ALL(or a big chunk of) the models here.
Textures are also kudos to them, so when crediting these weapons, credit me and Pandemic SPECIFICALLY too ok? If not, GIVE ALL CREDITS TO PANDEMIC OK
-Model of the scope of the CDEF = Me, CodaRez
-UV-mapping of the textures of the models I made above = Also me
-I also didn't mention this in readme, but I specifically thank MandeRek. He told me the way to import stock models to edit them.

Enjoy!

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The (legendary) "Whistler" Carbine:
Looking for the Whistler Carbine? Go here instead
forums/viewtopic.php?f=64&t=25133