Call of Chernobyl is a free-play sandbox mod for S.T.A.L.K.E.R. : Call of Pripyat created by TeamEPIC. It features 32 explorable maps, reworked level design and level fixes, new original level, Trucks Cemetery, Full AI and A-Life overhaul, engine and script enhancements, Repeatable task system which bases itself on A-Life events, Customizable weather environments for every map as well as surges and psi-storms from AF3, Character creation which includes name, portrait and faction selection; Several optional modes such as Ironman mode, story mode and zombie survival mode, New achievements, rankings and reputation system, PDA leaderboard and enhanced PDA statistics, Companion system with keyboard issued commands, many optional side-features and community-made addons . Call of Chernobyl was player's choice Mod of the Year 9th place in 2015 and 1st place in 2016!
The Tark, a mutant horse, was made for the Monster Ball competition by GSC Gameworld in 2004. The prize was that the winner's monster idea would be implemented into the game, however the Snork monster won the competition, and the Tark was never implemented. Now in CoC as a new mutant, it is spread all over the zone and is commonly found near boar and flesh.
Greshnik13rs for the model and textures
Copy the "gamedata" folder into CoC dir, overwrite files if asked.
If/when you want to revert back to the vanilla files, eliminating the tark from the game, apply into CoC dir the "gamedata" located inside the "gamedata_backup" folder.