About two years and one half were needed to make this mod possible. It modifies and improves greatly every aspect of Stalker: Clear Sky, excepted the main storyline and side quests which remain unchanged. See the full changelog for more information.

MasterStalker#1 says

3/10 - Agree (2) Disagree (3)

Well i wanted a hardcore mod and it is one... But it is not hard its just noncredible and artificial...

PROS:
-good sounds of guns
-nice textures
-really hard(what was very important for me)

CONS:
-no ironsights for pistols and no crooshair what makes them 100% useless...
-much too strong mutants(i mean vanilla lategame mutants like chims) and also too much of them even in the lairs in swamp(the first lair i wanted to kill had 1 chimera 2 ghosts bloodsuckers pseudos etc...)
-too good guns from the first minute(the first bandit i killed had 3!!! guns with him, a DRAGUNOV, a SAIGA and something that looked like a ppsh but used 12gauge ammo)
-factionwars are even more broken than in vanilla!(you get an mission to kill post XY but when you have killed nearly all enemies the quest breaks up and everythng was for nothing...
-Just incredible wasted trading: Everyone sells you load of weapons like MGs Snipers or assault rifles with some random ammo. And they do this from the very first beginning but you swim in money because selling the vanilla lategame guns you took from bandits!!! gives loads of money...
-new stuff in the mod has no description... so if you wanna use some of the new grenades or guns etc. you have to try what they do and what ammo they use because rtheir description is like: ds_pesrz_wpn214...

Concluding i would say this mod makes STALKER to a bad CoD clone using the best equipment from the very first minute to kill the best mutants in game after 5mins of playing... After installing this mod stalker cs is not a stalker anymore...