Insurrection is an Infection variant of Orbital. It features substantial blocking off and some interlocking with the use of filters. Its not a new idea and probably not original but I wanted to make a working Infection variant. Orbital is fairly jumpy already and its tight corridors and gloomy service tunnels inspired me.

The map begins with Gloomy filter on (sorry I placed the filters outside the map and couldn't edit them, so I had to take the photos with it on). Then after 120 seconds black and white kicks in. After 180 seconds Old style comes on.. freaky.

On to some images:

http://haloscreenshots.net/gallery/91AACBE449985FF71F67B48E365D2B21/
The humans spawn around the entry 'carpet'. A temporary barricade is between them and the zombie entrance point (left)

http://haloscreenshots.net/gallery/9861384DFC96DD4070ED0995599F9664/
The zombie spawning point is in the central lower corridor. It is completely blocked off apart from the end. (The start point for the alpha zombie is actually way back at the beginning of the corridor). A shield door stops spawn killing. Grav lifts spawn after 30 secs so the zombies can clear the shaft. The Alpha Zombie can clear it to begin with, but more on that later.

http://haloscreenshots.net/gallery/BF16CC8270E66255A0C1AB256C86CA41/
Moving down from the zombie spawn (right) and the human start (top) there is another barricade with weapons behind.

http://haloscreenshots.net/gallery/B13DB31A2B263102CC0592F5CABC421C/
Then on down the crowded corridor with some equipment and human spawns (in case of suicide - these are dotted around the map). I fiddled with the boxes to make it more mazelike.)

http://haloscreenshots.net/gallery/500A708F2C2838ED67C3B9EA8CEF6B9D/
Into one of the two main rooms with hiding places behind the pallets.

http://haloscreenshots.net/gallery/ADC84F131C72285BC20ABE7EBA0DE67C/
The computer relays hold a never-respawning sword and some weapons behind another barricade...

http://haloscreenshots.net/gallery/CF217E8DD2AE13CB48F884785418FF90/
...both main rooms can be easily flanked, however, by zombies using the quick way up the vents.

http://haloscreenshots.net/gallery/FBA6F803321B9E74D7C91C8CBB4CE21F/
Down the stairs from the human start is another barricade..

http://haloscreenshots.net/gallery/403A65DAC153F9C6CCFD5994BC735691/
...leading to the other main room.

http://haloscreenshots.net/gallery/899546702754E58214F30D903FEEF3D2/
Finally there is a place to hold out if the humans can get there.

On to the gametype and some action shots. The gametype is Pandemisis.
The Alpha Zombie spawns with the following traits:
- 300% speed
- lowest possible gravity
- one hit kill (like 300%, can't remember the number)
- VERY poor health (10% resistance)
- poor camo
- grav hammer
- 75m radar
- force color black.
Yes, it can escape the pit immediately but the humans need to have their wits about them. It will take one shot to kill, but can move insanely fast and is semi invisible. Chaos!
[EDIT: The Alpha Zombie now has normal gravity. This gives the humans more of a chance - otherwise a good alpha could kill them all fairly swiftly.]

Normal zombies spawn thus:
- normal speed
- 100% gravity
- 125% damage
- normal health
- no camo
- energy sword
- 50m radar
- force color black.

Humans:
- normal speed/damage/health
- no radar
- 75% gravity (well it is in space!)
- force color orange.

On to the pics:

http://haloscreenshots.net/gallery/035F0376BCFAC9F3087858F09F925866/
Recovery team enters. Tele leads to 50/50 chance of death or one of the main rooms.

http://haloscreenshots.net/gallery/0096EA4BEBA5FBB1CA01E7EFB5C75719/
Alpha zombie kill! Keep your eyes open...

http://haloscreenshots.net/gallery/657D03500D9A45755827EC2BAB215F14/
Even normal zombies are pretty scary...

http://haloscreenshots.net/gallery/63AFF6485497C3D199F85DE878E5BA87/
Black and white is freaky.

http://haloscreenshots.net/gallery/0100029A00F9AA6521A3D512179BE8EA/
Thats me getting killed that is.

Well thanks for your time reading that wall of text, and I hope my first post is good for FH standards. The map is finished but things can be modified so I'm happy to accept comments and criticism, especially about the gametype. So, download, grab a few mates, head to custom games and have fun. Feel free to change the round limit if 3 is not enough.

Thanks to testers Fingy Zit, Saber Crystal and Shinobi Red.

MAP: http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=75896578
GAMETYPE : http://www.bungie.net/Online/Halo3UserContentDetails.aspx?h3fileid=75896598
[EDIT: Map updated to fix zombie spawn camping issues, gametype tweaked]