Its a warthog with a "Dumb" (Unguided) missile launcher on the back, it drives exactly like a warthog, but it has two alternating missile pods on the back.
To tell you the truth I expect the bubble shield to be used more as a deployable cover more than a bubble shield. Example: Instead of placing it hiding inside, Placing it running in the opposite direction so your safe from any damage(because everything will hit bubble shield) but can still move.
OK, I've looked in to this a bit, done a bit of research and I think I've found something crucial to Reach's story. Explanation I'm just waiting for confirmation of petunias.
Regarding the question about the rocket hog- It fires 6 consecutive rockets very quickly one after the other. So you can sweep the retucle and pepper an area with rockets and do tons of damage. I drove it without a gunner once, and parked it and fired it a few times without a driver. It was in FF and there was only two of us and we didn't get the chance to hook up and work it together. It's badass though
Example of the rocket hog. You get to see it in action around 1:26. YouTube - Halo Reach Clone Mods & Rocket Hog
Bungie.net : Bungie Weekly Update: 07.30.2010 : 7/30/2010 1:50 PM PDT New update. Lol, so awesome: http://downloads.bungie.net/videos/hunterrawk.mov
Is that what I think it is? hangem.jpg? And those rocks are enormous! Stick those under any map to avoid it look like its a mysteriously floating platform, the rocks will make it look like its a mysteriously floating lump of rock... with a map built on it! Edit: Also, a good idea of what we achieve with the budget in those screenshots
Regarding the rocket hog: So, it shoots 6 rockets in very quick succession, but what happens after those six shots are fired? I assume that you don't just keep spamming rockets like you could with the Gauss turret.
Well of course some one (sorry, I mean lots of people) are going to remake Hang Em High (and all other maps) whether Bungie makes one or not.
Remaking the original map exactly is a bad idea considering how different the game will be. Using the original as inspiration for a new map utilizing forge 2.0 capabilities is a much better idea.