Sniper Ghost Warrior is waste of time and money....
Well, how to start!?.... the basic idea of this game is you against a whole army.... which is exaggerated, because no man can defeat a whole army by himself, no matter how skilled he would be.
I started playing at normal difficulty level and after an interesting first mission (you and second sniper, trying to kill the leader), you are required to go through a camp full of enemy soldiers by yourself. Not only this is a stupid idea, but also an impossible achievement, as they can see you wherever you choose to hide and snipe from. This also happens throughout the game. The enemy basically can see you in the bushes from 100-200 meters... not realistic. The enemy is more accurate the you (assault rifles vs. sniper rifle) and can kill you very quickly from far-away. When trying to aim at very long distance and there is a mark on your sniper scope which shows you where the bullet will hit... and very rapidly modifies it's location depending on the wind - which by the way, it doesn't move the leaves - so you won't get to hit much. You play a sniper on to enemy territory and you don't ever have binoculars to be able to see you enemy location before approaching. Although it may seem that the game is open scenery, it's not!!!... You're only forced to use certain paths in order not get detected (which means stupid AI). The game makes no difference between night and day, as the enemies can spot you from 300 m away, even during night-time.
One other thing: you can crawl and stay long under the water without dying. Sometimes during the game (when trying to go around so the enemy won't be able to see you) you stuck into invisible walls which restrict your access to possibly better areas of the map (you cannot move freely and apply your own sniping tactics; you're only required to finish the mission by playing in only one way...which is stupid).
The good things about this game are it's engine (Chrome Engine 4) and the bullet time.
With nowadays technologies and programmers, this could have been a great game... but it's great disappointment because of it's poor AI and limited movement possibilities. Its' price is also higher than any other City Interactive games, but it should have been the same, cause the game fails in so many ways...