Knives use for hunting are chiefly designed for skinning. If you want your knife to be a good skinning knife, then it is necessary to check the shape of the blade. A rounded or drop point blade is desired so that when you are "ripping" the skin, the point of your knife won't damage the meat. A fixed blade knife is more desirable, as folding blades have to many spaces that can trap blood.
A versatile knife for camping is what you will want. The reason for this is that the knife will be used for many reasons. You may want the knife to prepare food, trim brush, repair gear, and many,many other uses. It is for this reason, that a Swiss army knife or multi-tool may be best for your needs. Adding a saw, hatchet, or machete to your duffel bag before you leave is a good idea for tougher cutting jobs.
You should believably get a fillet knife for fishing. A fillet knife is well designed for cleaning fish, and it can also cut fishing line well, which is the other main task for a fishing knife. There are also electric fillet knives available for the fisherman that's constantly catching many fish. If you plan on fishing in salt water, be sure your knife is designed to withstand the corrosion of saltwater.
Trappers will broadly want a skinning knife, much like a hunting knife. A fixed blade or a folding knife will work equally well, this would be a preference of the sportsman. Tougher tasks are normally finished with an axe, so a second knife isn't normally necessary.
A boater's main need for a knife is alike to a fisherman, cutting line. You will want a sharp knife that is easily accessible and quick to use, should you need to cut a line in a hurry. Also be sure that the knife will stand up to wet condition. It is evident that each outdoor sportsman needs a certain type of knife. A superior knife will make your tasks simpler. A quality knife will often be passed on for many generations.