Hello fellow Halo 3 players this is my 1st map post & forum post I've put on Forge Hub. This map is called Bomber Run because about every 30 seconds the surface gets bombed, just like in real life you'll have to take cover. There are 4 entrances/exits to underground tunnels where you can hide or sneak around to the enemy's territory. Here are pics of the tunnels...
In pic #2 you see an elite looking a some BRs and Shotys look to his right do you see some doors piled on top of each other? That area right there has the only sniper on the level and is covered on top, has a 360 degree view and the sniper can take easy shots on anyone outside (unless the fusion coils get to them first Heheheh)
The wepons on this map include Brute Shot, Battle Rifles, Energy Sword, Gravity Hammer, Shotgun, Rocket Launcher, Turrets, Sniper Rifle, Spartan Laser, and Sentinal Beams. The Battle Rifles, Shotguns, and Sniper (only 1 on map.) are available at start of match. The Gravity Hammer, Rocket Launcher, Spartan Laser, Energy Sword all spawn outside where the bombs fall and where a sniper can take you out. The sentinal beams are centrally located on the map there are 2 of them. The vehicles on this map include one warthog and 2 mongooses. The warthog is shown in this pic,
Take caution as the warthog can get stuck in the entrances to the tunnels (although this can be used to keep the enemy in or out of the tunnels) Here are the rest of the pics of the level.
Above is the finishing effect given to anyone outside when the "bombs" drop.
Below is the sniper point look for it, its roof is a single wall panel.

Above is one of the entrances to the Attackers base
Below is a view from on of the turrets, at this turret a energy sword spawns

Above shows a blockade that spawns after the 1st wave of bombs this is passable using crouch.

Ok I think you got a good idea on what the maps like, time for details on the gametype for it.
Name: Trench Fight
Type: Team Slayer
Score To Win: 25
Time: 10 Minutes
Other: Default Shields and Health, gernade regeneration, no unlimited ammo, 110% damage modifier, normal movement, full vehicle use, enhanced radar up to 75 meters!!! (wow thats more than 74 meters!!!) Forced color is brown.
Wepons: Primary: SMG
Secondary: Magnum

So thats my map with gametype hope you like it!!! Oh wait you won't like it without a link so here it is.

Gametype: http://www.bungie.net/forums/posts.aspx?h3fileid=27316805

Map: http://www.bungie.net/forums/posts.aspx?h3fileid=27316781

Please rate these! And fun slaying.