You're right. I think Urban was okay with the main stairwell in the block that leads up to the colony's second level, having a 'landing' off it that accessed the Hab block's 2nd tier. There's also a minor staircase to the other end of the 2nd tier too. This is what my imagination is giving:<br/><br/>(http://i279.photobucket.com/albums/kk137/HaibaneR/Hab-Block-Attack.jpg)<br/><br/>Using my earlier plan and scaling out the Hab units to around 10-12 feet wide that in fact places the two sentries about fifteen metres apart which is what I just suggested (quite by chance) in Senjo's last post.<br/><br/>Note B Gun has been moved from my earlier plan and is now partly under the 2nd tier walkway, Rome is fully under it.<br/><br/>The locations of Zippo/Senjo/Caesar are approximate but probable. I know Corvus wrote that Rome went to stand near B Gun so if needs be he could retreat into a Hab unit doorway and get some cover there.<br/><br/>Rest of Bravo still falling back as I see it. Doorways of Hab units look like the best cover or behind A Gun if they can get there.<br/><br/>I imagine the upper tier walkway to just be pierced steel planking with a handrail, so no protection from bullets fired from below (or above).<br/><br/>This plan does indicate that Bravo have quite a way to run. Depends how close the second wave of bugs is as to what their options are. There would be a manual override on the sentry gun housing in case troops need to switch it off without the command console so, yeah, Senjo would punch her fist on that if bugs appear mixed in with Bravo.<br/><br/>Senjo put a lock on B Gun's field of fire so it won't swing and shoot towards A Gun! I guess if the bugs get to about level with the stair well where I've put some dots showing Bravo or up beside the barricade, they'd be out of B Gun's arc. B Gun is really there only to sanitize the School corridor and that doorway, once the bugs get beyond that its down to A Gun, the M56 and the M41s. The M240 looks way too scary to use in this space!