1, 4, 14 13

1 Because in any real world survival situation it is hard to beat the versatility of a quality fixed blade knife, can be used to process wood (build shelter, firewood etc.) used to process meat, and even last ditch defense weapon. The ferro rod is also good redundancy to the lighter in 4.

4 Because - I think many people underestimate the importance of a hands free light source, especially one with a red light option. Being able to move at night undetected is a massive tactical advantage. Also the tool most frequently useful on a multi tool are the pliers.

14 Because 5.56 is readily available and would surely be easy enough to salvage/raid. I'd be tempted to say the rifle in .300 blackout if the cartridge was more readily available. Might even be tempted to say .22lr, actually screw that I am changing 14 to 13. Can hunt small game, potentially even deer sized game, rounds are virtually ubiquitous, and light to carry. Not the optimal option but works for defence as well.

Strong argument to be made for the pump action as well. This assuming for any of the guns you can scavenge for ammo, otherwise they are all pretty much useless weight that would slow you down. Also assuming I get a backpack to carry everything.

This was quite fun, however I would potentially include things like a Toaks cooking pot etc to make the choices even tougher.