Utterly Mad

Mainly improves the AI, or at least makes things more complex and difficult. Trickery like allowing gun-toting enemies to coordinate fire, full-auto enemies engaging in marching fire, lost souls randomly homing in instead of sailing past, ranged enemies in general not firing if their line of fire is obstructed, the SS behaving like their Wolfenstein 3D version, etc.

Player-specific Changes:

* Fists are stealthy, while the chainsaw can alert monsters while idling.
* Weapons gain differing levels of alert volume, making some weapons draw more attention than others.
* Shotshell maximum doubled.
* Rocket launcher and plasma rifle gain random spread if fired continously.
* Player projectiles can alert nearby monsters on impact.

Changes Common to Both Players and Monsters:

* All hitscan attacks (not just the super shotgun) gain vertical spread, with a comparable reduction in horizontal spread. This goes for both player weapons and monster attacks.
* All projectiles have a small area of effect on impact, set to increase the minimum damage of a direct hit without increasing the maximum. For non-rockets, the effect bypasses cyberdemon/mastermind immunity. Both player projectiles and monster projectiles are affected. Monsters are also immune to their own radius effects and those of their fellows.
* Bullet damage slightly increased. Gun-toting enemies get the same benefit though.
* Shotgun buffed to fire 10 pellets, consistent with super shotgun's 20. Beware, shotgun zombies get the same benefit, though they at least gain more spread than other gun-toting enemies.
* Rockets have the same speed as plasma balls and BFG shots. Yes, this affects the cyberdemon too.

Monster-specic Changes:

* Monsters gain various health and speed increases.
* Monsters can fire in volleys. One monster firing has a random chance of making nearby monsters follow suit. Pain elementals, revenants, and archviles will not fire in volleys.
* Monsters can potentially evade when aimed at, and have a chance of opening fire right afterward. Enemies with melee attacks will refrain from dodging when they get close enough.
* Monsters will hold their fire if a fellow monster block their direct line of fire, and may attempt to dodge to get a clear shot.
* Full-auto enemies can engage in marching fire.
* The SS enemies behave closer to their wolfenstein 3D counterparts plus dodging, line-of-fire checks, volley fire, and marching fire.
* Demons and spectres can potentially move faster when within a certain distance.
* Specres lack alert sounds.
* Lost souls explode on death, within a short radius. Like with monster projectiles, other lost souls and pain elementals are immune to this.
* Lost souls will slow down and start homing in on you if they get close enough in mid-charge. They also can't be halted by shooting them once they start homing.
* Cacodemons and knights/barons bleed the correct color of bloodsplatter.
* Barons of hell gain immunity to explosions.
* Revenant projectiles are faster when non-seeking, and maneuver more aggressively when seeking.
* Archviles have a chance of using an attack that'll additionally blast the spot they first targeted, and heal nearby monsters when they revive the slain.
* Made cyberdemons and spider masterminds able to direct volley fire for any monster allowed to coordinate fire. Also? Both of them explode on death.
* Cyberdemons can randomly choose to continue firing rockets, or engage in marching fire, instead of firing the standard burst.