Just tried my first shottyman runthrough, got struck by bad luck time after time. I kept running into "barrel levels", found an awefull lot of useless weapon mods (while I normally go for pistols and crave them). Found Gothic boots on level 11 which were useless :(. The entire game, which lasted untill level 13 (orso) I was still walking around with the default shotgun (couldn't find any other shotgun).
Man, Doomrl can be frustrating.
P.S. First post, w00t.