Base levels are not my favourite
style for Quake (they only work in Quake2),
but Dawn of the Dead was actually quite good.
Despite being no grand architecture, Thehuge
blended the tech and sewers quite nicely. The
gameplay was very hard, with piles of Grunts
and Enforcers around every corner. There were
a number of places where you need to press a
button to proceed on, and suddenly a handful
of Grunts appear around you. I found it very
challenging taking on 140 enemies with not much
health, but still very fun.