Sorry for the crappy title, I did my best to sum up these three plugins.
Plugin #1: I'm looking for a plugin that allows me to give the illusion of walls closing in on people, this sounds crazy, but I've seen it done on coccyx's afraid of monsters server, you can see it being used on this video at 7: 30 minutes in.
https://www.youtube.com/watch?v=I0yhtDVdvSI
Plugin #2: I'm looking for the plugin used on Coccyx's server that adds bleeding, upon reaching 40 health, you'll begin to bleed, slowly losing health until you find a medkit/restore your health to over 40, it'll also display a message saying "Caution! You are hurt!" You can see it being used on this video at 7:50 minutes in.
https://www.youtube.com/watch?v=EUFnSW46QQg
Plugin #3: I'm looking for a plugin that'll allow me to show a hud message to all players, similar to "amx_csay" but it'll only show the message, not my name. You can also see it being used at several points in the two videos I posted links to.
I have indeed searched thoroughly and not found anything, the closest I've found for plugin 3 is this:
https://forums.alliedmods.net/showthread.php?t=149210
But installing it causes my game to crash, the closest I've found to anything like plugin 2 is a gore mod that makes you bleed when you're on lower health, however it does not turn your screen red or make you actually lose health slowly. I've searched for all three of these plugins on this website, metamod's website, adminmod's website and the amxmodx website.