Black Ops 2 Texture Pack was firstly made for developer’s minecraft server, but later he decided to release it as minecraft texture pack and make it public.
Black Ops 2 Texture Pack Installation:
Download This Texture pack -> Download MCPatcher. -> Run the mcpatcher.jar file and proceed to click “patch.” -> Open .minecraft folder. -> Open texturepacks folder. -> Copy and Paste your downloaded Texture Pack here without extracting! -> Enable the texture pack. -> Done!