Can you guys help me with the lingo?  Is a tile what I think it is: a pre-constructed area that you can drop into a map, like a base object or a shore battery.  Or is a tile something that gets smeared into the terrain, like the repeating pattern of fields and such.  Thanks
Edit: 
I think I understand now.  A tile set consists of the actual colors and features that are painted into a terrain overlay.  An object is something you drop into/onto the terrain.  Objects are the things you interact with in the game, like towns, bases, guns, etc.
With that said, I was hoping to created a berm field object, with berms, small hills, etc, that could be placed near converging spawns or outside of bases, to enhance the ground game.