Half-Life ' The best shooter ever'

I like shooters and of course is Half-life my favourite computergame the hard action with the alliens and death scientist make losing your blody mood. Behalf of that Half-life has the ugliest interface ever accept of wolfenstein 3d. But that doesn't matter. You play a student he has a secret and dangerous expriment it turned very wrong and alliens are every were a lot of death scientist. You mission escape and kill a the alliens. The best things are the alliens are on the wall and have great tongs if you walk against it you are eaten by the creaps...