As it says on the tin, this mod replaces all Ilija the sniper's lines with voice clips from the Sniper character in Team Fortress 2. Extract the zip file to your payday 2 mod_overrides folder.

Preview video:
https://www.youtube.com/watch?v=OCxKY3eAcnI

(other mods being used: Hawk's near complete sound pack, M.O.R.E., pocohud)