Interesting idea, using your surroundings like that. Shooting pressurized pipes or tanks might not be smart in normal circumstances, but if it's do or die I supoose that could work.

Also, upon seeing the word "military", I assumed trained forces (what the 1st OOC post describes as "security guard"), not militia. My head automatically went "military > security guards" and didn't bother to check, so good job spotting/remembering that.