I'd rather slap the Hallow zone plan onto Option A.<br/><br/>Also, repeat question:<br/><div class="quoteheader"><div class="topslice_quote">Quote</div></div><blockquote class="bbc_standard_quote">What is the facility made of in terms of walls/floors/ceilings? There's a huge difference between, say, an entire complex tunneled out of solid rock and one dug into dirt then built with masonry.<br/></blockquote><div class="quotefooter"><div class="botslice_quote"></div></div>