Version 1.1 avaiable: http://www.garrysmod.org/downloads/?a=view&id=132138

//A T T E N T I O N - M O D D E R S & C O D D E R S\\
If you want to use this HUD for a gamemode or mod, you can! But pleeeease, give credit!

And now, the description...

Hello people! as I said, I would make the HUD from the original Half-Life, and here it is!
I extracted the images from the sprites of the original game.

Featuring:
-Health meter; it goes red when you are low on health.
-Armor meter; it will work like the original Half-Life: Opposing Force! (this feature was hard to do).
-Ammo meter; it displays the type of ammo is using your gun.

I spent much time on it, so I just hope you like it!

//Known bugs unable to fix by me:
-S.L.A.M ammo display is not working correctly.

Sorry if my english is bad!
And feel free to report any unknown bug!

Opposing Force HUD: http://www.garrysmod.org/downloads/?a=view&id=131906

Note:The up date of the info file is wrong.