Foundry is ... interesting.
The entire level is made of modular bits and pieces found in the Forge's custom builder menus. (Think Lego bricks on a flat table)
This is as clear of a canvas as you can get (when you wipe it out). There's 4 walls and gigantic machine crates everywhere. I can't find many weapons and there aren't any good spots to snipe of hide.
No active camo, no shotgun, no maulers, nothing ... 1 rocket launcher, 1 sniper.
Seems like maulers have been removed from these 3 maps all together. : \