Having done this, go back, run past the elevator that brought us here, go out into the corridor. We need to enter both in turn in order to start one water pump at the end. There, running straight, you will notice two different corridors, one blue, the other orange. Then again follow the same corridor in the other direction to take the elevator down. Having dealt with the opponents, enter the door opened by the scientist, use the elevator to go up, then run to the right to get hold of a weapon. Because we need to get to the control room where the scientist is, he will open the door for us, but only when he sees that it will be safe.

We need to clear the entire area from opponents, otherwise it will simply not be possible to continue the passage of Half Life. With the help of the elevator we go down, after leaving, run to the gate in front, along the way getting rid of all kinds of evil spirits from the parallel world. Further there will be a staircase leading up, there on the right side you will see a shaded passage - run into it. When you kill them all, find a passage in the right wall - it is closed by boxes that need to be broken with a tire iron. It remains only to advise you to act with the utmost concentration of attention, not relaxing for a second and reacting with lightning speed to the appearance of agile opponents. The most unpleasant opponents await you in the warehouse - small black nimble ninjas who move at a crazy speed, which makes it extremely difficult to aim and, as a result, to eliminate them. Further there will be a door, behind which several corridors, having passed them, you will go to the warehouse.

The freight elevator will take us down, leaving it, climb to the observation deck - you will see it from above on the right side.

Half life surface tension walkthrough