So what's Universal Possession? Well, as the name implies, it's like one of those possession mods where you can play as a monster... the fun thing about this one, though, is that it works with any mod, any IWAD, and any monster (except maybe some advanced ZScript ones?)! Yes, that includes even Brutal Doom, which is enough sign that it should work with practically anything you throw at it :p
You have a new key that can throw the possession projectile at an enemy, you take control of whatever monster it hits!
To make it not horribly overpowered, you can set a specific amount of kills required to use the projectile with the up_requiredkills CVAR. Setting this to 0 disables the mod, setting it to a negative number instead gives you infinite times to use the projectile, but setting it to any positive numbers sets the kill requirement to charge the projectile. So if this is set to 20 (the default), you'll need 20 kills to be able to use the projectile again.
If the third person camera isn't your fancy either, you can change it with the up_thirdperson CVAR. If set to 0, you go into first person mode when possessing. Obviously you can't see your monster's hands, though. The default is 1, which instead uses a chasecam.
Obligatory features list:
-Works on Zandronum! (duh)
-Possess any monster you want!
-Works online (mostly)
-Even DEHACKED mods work
-Full controller support, too
Spoiler: Changelog (Open)
Spoiler: Screenshots (Open)