As most of us know, ODST is coming out and has one new feature in it, Horde Mode. Only in ODST, its called FireFight. Now I present this map and gametype to bring this feature to you sooner.

Note!
Some changes were made to the map and gametype after this thread was posted.
1) Two ghosts were added for the covenant
2) Turret was moved
3) Trip mine was added for humans
4) Humans have 40% more damage resistance
5) Weapons respawns for covenant work better

Horde
Choose your guns, pick your spot, and prepare for the onsluaght as unlimited waves of covenant forces slowly overwhelm you and your friends. At the begining you have exactly 45 seconds to get what you need and get inside a building. Every 5 minutes you survive counts as one round. In the game the survivors will start off with an assualt rifle and a magnum. Weapon pickup is enabled, so you can look around and find the weapon that will help you survive. In the gametype, you will be able to play as and fight off five different kinds of covenant. Grunts, jakals, elites, brutes, and elite honor gaurds. Staying together and helping each other is the key to this game. If you don't, then any one of these five can easily overwhelm you.(For zombies, after you respawn you have 10 seconds to pick up weapons, this is so you can become a jakal, brute, elite and elite honor guard).

Grunts

Grunts are the main units in the covenant and the ones
you'll see the most(all infected start out as grunts). Grunts
start with a plasma pistol, have very little damage resistance,
and run slower than anything in the game. They can be identified
by their green color.

Jakals

Jakals are just as strong as grunts but have better weapons.
Jakals come in two different classes. The first class includes
a deployable cover(energy sheild) and of course a plasma pistol.
The second class includes just a carbine. Jakals, like grunts, can
be identified by their green color.

Elites

Elites are much stronger than grunts and jakals and
come with better weapons. With correct teamwork, you
will be able to take them down. Elites also come with two
different classes. The first class includes two plasma rifles
and two plasma gernades. The second class includes a
needler. Elites can be identified by their purple color.

Brutes

Thought not as strong as elites, brutes can still prove
to be tough opponents. With good tatics, these foes
will be brought down before they can do too much
damage. As well as everything else, brutes come with
two classes. The first class includes two spikers and
two spike gernades. The second class comes with a
brute shot and a bubble sheild. Brutes can be identified
by their oversheilds.

Elite Honor Guards

Elite honor guards are elites with the deadliest covenant
weapon in the game. These units are perfect for killing
anyone in a close area. One slash-one kill. This is the
rarest of all units and comes every 2 minutes. Unless
you have a shotgun, RUN AND SHOOT!
(NOTE: every unit except grunts have two classes
meaning that there's two different weapon groups for
that one unit: units are jakals, elites, and brutes)

Sandpitt
Surrounded by sand, the last remains of this great city lay in this pitt. The city was abonded hundreds of years ago for an unkown reason, and now, this is where you come to survive the covenant. Though the remaining buildings are almost completely destroyed and have been ramsacked, some supplies and safe places yet remain. Six buildings still stand and you must choose which one to hold out in. Throughout the map there is a variety of weapons to choose from that may change the difference from your survival and your doom. But, think about what you pick up, the stronger the weapon, the longer the respawn rate. This means that every once in a while you will have to go on an ammo run and then quickly get back to your position. Now here are the pics!

Overview

Werehouse

The werehouse is an unfinished building that was forgotten about
in the departure. Find out whats inside on your own.

Minimall

Once the city was emptied, the minimall was boarded up to keep
people out(but didn't stop most of them).

Pharmacy

The pharmacy was ramsacked for supplies but you might still find a few useful items.

The Bridge

The bridge is the main part of the city which is used to get from
one half of it to the other. Now slowly over time, it starts to fall apart.

The Gas Station

Most of the gas tanks were taken away and the gas station was left to be ruins.

The House

Once a big house, now it is completely destroyed. This is the oldest building that is still standing.

Zombie Spawn

The zombies spawn here and must wait 45 seconds for the bridge
to spawn so they can go and attack. Once the tubes open up,
zombies can jump down them and(depending on which one they
jumped down) can be either a jakal, elite, brute, or elite honor guard.

Hope you enjoy the map and gametype!
Tell me how long you survive(maybe you can beat my record).
Please comment and tell me what you think of the map and gameplay.

Download Map: http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=87739363
Download Gametype: http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=88561280
Note: The downloades on the gametype are low because the gametype
was changed twice and started at zero downloades, twice.
The map was changed once and started at zero downloades.