Rainbow Six Black Ops 2.0 is a total conversion for Rainbow Six Black Thorn, featuring a more complete and refined version of the fan-made compilation first released in 2011. It aims to offers the ultimate Rainbow Six experience from the Rogue Spear era.
The May 2022 release of Black Ops 2.0 includes the Ak 5 assault rifle using Take Down's FNC 3d model, while restoring Black Thorn's 3d model for the FNC. Both weapons have similar yet unique stats.
Little trivia: the demo version of Take Down calls the FNC as the Ak 5; the name was changed back to FNC in the full release version.