Half-Life Hints and Tips 

See Underwater
Switching to software mode should help you to see underwater. 
Be sure to switch back after you've reached dry ground. 

When In Need, Seek Out a Scientist
If you find yourself hurting and in desperate need of medical 
attention, seek out a Scientist. Walk up to him and press your Use 
key until he says, "Let me take care of that wound for you." This 
won't work every time, but when it does, it's a welcome surprise. 

Take the Hazard Course
The Hazard Course is an excellent resource for learning the 
moves necessary to make it through the game. Even seasoned 
players should have a crack at it.

Run Into an Ambush
Commandos are very smart, and once your position has been 
compromised, it's on! Not only will they attack you in formation, 
but they'll also lob grenades at you. So don't sit still. The only way 
to survive an ambush is to run into it. Sure, the odds won't be 
great, but they're better than no chance at all. 

Let the Water Heal You 
Get health in a pinch by diving in the nearest water (not toxic 
waste) and staying under until the O2 warning flashes. Quickly 
surface, and you'll get 10 to 15 health. 

Make Use of Crates and Boxes 
As you will learn in the Hazard Course, you can pull crates and 
boxes into positions so you can use them as tools to get to high 
places. 






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