I made this map specificaly for the ZOMBIE INVASION game variant, and MUST be played with at least 4 players to have fun. Anyways, I turned highground into a zombie defense camp and in the beggining of the round, one of your team mates is the alpha zombie. He is incredibly slow but has max health, overshields, instant kill, a graity hammer to knock stuff away, and an energy sword, but does not regenerate health. The map features a scorpion and lots of splasers. He doesn't regain health but is a lot tougher than you think. Everytime he kills one of your teammates, they become a minion. They are weak but can be very powerful in a group and are also good for destroying fusion coil walls. The game ends when the last man standing is dead.
THE BASE

THE ALPHA ZOMBIE STARTS AT THE BOTTOM OF THE HILL

WAYS OF GETTING IN FOR THE ALPHA ZOMBIE
There are exactly 5 ways for the zombies to come in. Watch out for them.
WAYS 1 AND 2

You can simply destroy the barricades or break down the trap door. The trap door is easier.

WAYS 3 AND 4

You can either try to jump up or blast your way through and enter the tunnel. Watch out though, there are fusion coils waiting inside the tunnels.

Way 5

My personal favorite-blast through the pathetic gate. It will respawn after a while.
DEFENSE STRATEGIES
Even though the alpha zombie is near invincible, there are ways of killing him. The plasma pistols are the fastest way to bring his tough shields down. These are a bunnch of other things that will help.

LOWER BASE

The lower base is used mainly to get the alpha zombie to the lowest health possible before he enters but is also filled with powerful weapons. There are two ways for the alpha zombie to get into this room though.

UPPER BASE

The upper base hosts a tank and a series of weapons. There are grav lifts you can use to get up. The bottom grav lift does not respawn, making you untouchable by the alpha zombie, although his minion are able to stand on each other to get up or use other objects.

TUNNEL DEFENSE

The tunnels as I spoke of earlier, are lined with fusion coils which won't do much to the alpha zombie but will easily take out any minions trying to get in.

LAST STAND ROOM

The name says it all. This is the most powerful room on the map. Filled with many weapons, a fusion coil defense, and 3 mongooses for escape, the zombies are going to have a tough time getting a kill, DO NOT UNDERSTIMATE THE ALPHA ZOMBIE JUST BECAUSE OF THE LARGE QUANTITY OF WEAPONS-ITS VERY EASY FOR HIM TO GET IN(CAMPING NOT SUGGESTED)

PLEASE GIVE THIS MAP A TRY IT GETS QUITE ADDICTING AFTER A WHILE, AND PLEASE COMMENT ON ANY WAY THIS MAP CAN BE IMPROVED.

DOWNLOAD MAP HERE-SURVIVOR CAMP

DOWNLOAD GAMETYPE HERE-ZOMBIE INVASION