I've been browsing the Victorinox line recently looking for the best camping-and-bushcraft-specific model as a gift for my nephew who is acquiring his uncle's love of backpacking. He already as a Swiss Champ and I realize that's all anyone needs, but I'd like to find him a dedicated camping-only model that would live in his backpack or maybe in the sheath pocket of his KaBar USMC.
The Vic bushcraft model I'd like to find would have a saw, locking straight edge main blade, awl for drilling, serrated blade for rope/vines, and scissors. Add a magnifying glass and you'd have the perfect bushcraft knife.
I haven't found that combo so far in my Vic search. The Fireman model comes close but lacks scissors and magnifier. Any of the SAK aficianadoes here have a suggestion?
People's definition of "backpacking" vary considerably, so take this with a grain of salt...
For modern backpacking, I carry a repair kit that includes a straight and curved heavy duty needle and heavy duty thread. Critical for repairing blown seams in the field, imo. These are useless though unless I have the ability to force the needle through heavy pack cloth and webbing. For this reason, I carry a tool with pliers. I also find scissors to be useful for 1st aid/bandage prep.
I carry the Leatherman Squirt PS4 along with a main knife for food prep/wood working. For me, I've found that anything beyond this is "bad weight", meaning extra weight with little/no functional pay back. In this scenario, my multi-tool has definitely displaced a camper/sak type knife.
With respect to some of your other requirements...
SAW - In the winter if I really may need a fire for survival, I carry a Silky Pocket boy. If I need to cut wood, I consider the Pocket Boy "good weight" over any saw on a multi-tool or folding knife. Size matters.
Locking straight edge main blade - I strongly prefer a single bladed knife. I generally carry an Opinel or a fixed blade. Ability to deal with food prep and feather sticking is essential.
Awl for drilling - in over 30 years of backpacking, ski touring and climbing, I've only needed to drill once and that was dealing with remounting a ski binding. This would easily overcome the awls on 90% of the pocket tools I've seen. It's a real problem. Currently I carry a drill type bit for the racheting t-handle screw driver that I carry when ski touring.
Serrated blade for rope/vines - I think this is primarily an issue if in watercraft or doing real rope craft, where seconds count. A PFT cutting tool makes sense in that scenario. But for general backpacking, I can deal with ropes with a plain blade.
Scissors - critical but covered by the Squirt.
In the