Next to the Camillus today is a GEC-manufactured Smith & Sons Mudbug in natural canvas micarta. The GEC sodbusters tend to get a lot of love around here, but I never see much about the Mudbug.
There is usually a Mudbug run about once per year, and it often gets tagged onto a GEC Farm & Field run. I much prefer the Mudbug over the standard sodbusters though, as the Mudbug has a nice strong back lock, and the steel frame seems to have very little flex when squeezing it. Smith & Sons also goes the extra mile, and puts their own edge on each Mudbug, so they always ship wicked sharp.
The Mudbug used to have a sheath option when buying it, but I think it may just come standard now. Either way, the sheath should definitely be purchased. It's actually a nice quality leather sheath, made in-house I believe, works very well, and is not one of those "token gesture sheaths" that often come with knives.