3rd AHPC VI submission: 'Let it rip' - Defensive Terrain Bonus Round entry

Meant to post this a lot earlier but work got in the way. Nonetheless the poll for your favourite interpretation of 'Defensive Terrain' is still open, so make sure you head over and leave your vote. It was a close run thing but I finaly got something in to the bonus rounds. With a little more time at hand and a head full of ideas I enthusiastically dived head first into the preparations. At