Just checked this out on the Steam Store page.  Looks pretty good.  It is currently on sale during the Summer Sale for $8.99.  I may have to pick it up and give it a try.

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i don't like the game

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I've been playing Insurgency for the past several days and have been thoroughly enjoying it.  It is definitely hard, as it can be difficult to know if you actually killed someone or not.  There are no hit markers and no indicators that you killed someone or who killed you.  The maps look like it would play well with crouch and would be a lot of fun as crouch.

Steam has it on sale right now as a daily deal for $6.74.  I recommend you check it out if you can.

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The Steam sale is still going on for this game.  I highly recommend it for those of you looking for something hard core that is different.

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They've done some updates and.. Well this game is still LOADS of fun!