Half Life: The Role-Playing Game

Intro

I just remembered about this RPG I developed a year or so ago. I got the files from my old hard drive so I could post them here and anyone incredibly fixated on both RPGs and the Half-Life franchise (which I've been replaying for the seventh time) can maybe find some fun in it. Maybe some people will actually play it, maybe they won't. But I just feel like I put a little too much time into this for just the one campaign I DMed.

Basics

The core of the game is similar to what I know of AD&D. The stats are all the same: STR, DEX, WIS, INT, CON, and CHA. I recommend skimming through here if you're unfamiliar with the basics. 
​I do like to use the ability modifiers from a more recent edition:

​If you're precise about rules, assume anything not covered here is the same as in AD&D. Otherwise, feel free to change any rules to make the game fun for you.

Making A Character

Above you'll find classes and starting equipment for your character. 
​Below is a Saving Throw guide for each class.

Enemies

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Feel free to come up with more enemies, as this is a very limited list!
Or, you can just put some of these guys in your regular-old D&D campaign. I won't mind.
​

Loot

The following only applies to
METRO COP/CIVIL PROTECTION

Roll d20:
1: The loot is unusable
2-5: Standard armor + weapon and 1 ammo
5-10: + item below
11-16: + + 2 items
17-19: + 3 items
20: great item

​Items:
Rope
Grappling hook
Grenade
Combat knife
Ration
Pack of cigarettes
Medpack
Gun Sight
Flask
Flashlight
Cigarette lighter