No Mercy Rooftop
Part of the Left 4 Dead Survival remake project

Map Description
This is a remake of the rooftop of No Mercy hospital, from Left 4 Dead. Set in Sandbox's skybubble, it is a budget-glitched map which runs just short of the hard item limit. The humans must survive for 3 minutes as hordes of zombies constantly assault their position.

4 sniper rifles, 4 shotguns, 4 assault rifles, and 4 magnums are placed in the middle of the map to help the humans survive. There are fusion coils, trip mines, and grenades as well.
As the zombies attack the humans' fortifications, they may burst through the doors, as well as beak down walls. Whenever you come across a wall that looks like this

it can be broken down by running into or meleeing it.

Gametype Description
Humans
Spawn with magnum
Weapon pickup enabled
100% movespeed
100% gravity
150% damage resistance
2x overshield
No shield recharge
90% damage modifier
Standard radar, 25m
Zombies
Spawn with plasma pistol
Infinite ammo
Weapon pickup disabled
110% movespeed
75% gravity
90% damage resistance
No shields
50% damage modifier
No radar

Zombie Spawn system
The zombies are divided into 5 classes, like in Left 4 Dead. Weapon pickup is enabled for the first 5 seconds of a respawn, allowing zombies to collect their powerups.
The normal infected receive no benefit, and can simply teleport to the rooftop from their spawnpoint.
The special infected are:
The Hunter

The hunter gets an energy sword, a grav lift, and an active camo. As weak as a normal infected, the hunter is best for surprise attacks and assassinations.

The Smoker

The smoker gets a sentinel beam and a radar jammer. The sniper of the infected, the smoker can also deploy his radar jammer to allow his teammates to sneak up on the humans.

The Boomer

The boomer gets two plasma grenades and a flare. While not very good at dealing direct damage, the boomer can throw his flare in tandem with the smoker's radar jammer to completely blind the humans.

The Tank

The tank gets a gravity hammer, as well as an overshield and a custom powerup which gives him heightened damage resistance. IMPORTANT: Allow the overshield to charge fully before picking up the custom powerup.

In 10 lives, you can expect to play as normal infected about 4 times, and the special infected (excluding the tank) 2 times each.

Pics

Where the humans spawn (Radio room)

Inside the human spawn. The overshields are used as medipacks. (The hornet has been removed, so don't worry about that.)

The grenade house

Inside the grenade house

A remade "Jesus room." However, campers be warned, the back wall is not as strong as it once was...

The map
Must be played with...
The gametype