Played the good ol' Aqua series. I think these maps weren't legendary in their days without a reason. Even today, despite being aged somewhat, these levels are impressive. What is actually impressive in them, how the managed to capture the original Duke feel. Not many maps can do that, and in 1996, I think the Aqua series were far the best in the business.
Fixing some flaws, most notably re-scaling the cramped corridors, correcting the enemy balance, adding some minor touches here and there, and they could well fit into the style of 3dRealms. George W Bernard definately played these levels, he obviously got some ideas, like the underwater mine. I think George's LRWB is the improved version of the Aqua series.