Uploaded June 2024 | Updated September 2026, 1 week ago

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Shows why you can, or can't, pick up the green armor vest in the starting area of Doom/Ultimate Doom level E1M2, Nuclear Plant. Enable Captions for on-screen notes.

In Classic Doom games, armor vests come in two types: Green, which provides 100% armor (and absorbs one-third of incoming damage), and blue, providing 200% (and absorbing half damage).

You can only take a green vest if your armor is currently below 100%, and only take a blue vest if armor is below 200%.

If you got a vest (especially the blue one) on the previous level, then there's a chance your armor is already 100% or more when entering this level.

Here the player enters the level with no armor, picks up one green vest hidden nearby, then fails to grab the next green vest. But after some damage knocks the armor below 100%, the vest is taken.

This is a video conversion of the .lmp file E1M2ARMR at ClassicDOOM.com:
classicdoom.com/d1demos.htm#e1m2armr

Timestamps:

0:00 - Armor at 0%, green vest taken
0:07 - Armor at 100%, green vest ignored
0:11 - Armor at 99%, green vest taken

This video is part of the ClassicDOOM 'Doom/UDoom solutions' playlist:
youtube.com/playlist?list=PL7AE56D17E37A2B7F

#doom #ultimatedoom #classicdoom