I'm leveling 3 Nelf hunters with cats. I'm looking forward to trying them in BG when my cats get prowl. Some enemies are in for a surprise when they get jumped by 3 prowling cats followed by 3 hunters popping out of shadowmeld delivering 3 aimed shots followed by 3 arcane shots. I think my tactics will be mostly ambushing people. Not so much running into the middle of big groups of enemies.