Pardon my ignorance, but how would this fare against a simple, purely mechanical connection, like wiring terminals, like the ones used for home electrical installations? (Or more specialized ones, since we're talking Military Grade.)
I'd imagine the terminals to be more reliable under difficult weather conditions, slightly less likely to set off any explosives you might have right next to you, do not produce any sound/sparks/smoke when you might want to stay undetected, recoverable/reusable if the non-blown-up parts could be recovered (exercises, guerilla warfare), longer shelf-life, the only tool you need is a pocket knife, etc.
Resistance of the soldered connection will be consistently lower compared to terminals, also terminals with screws, especially in WW II quality, will oxidise quickly in a wet environment and thus the resistance will go up over time. Plus you get a very nice visual feedback by the self-soldering joints. Terminals look all the same - you need tools to control the quality of the electrical connection. So for longer lines with several joints that are needed for more than a few days, I‘ll definitely put my money on the soldering team.
I'd imagine the terminals to be more reliable under difficult weather conditions, slightly less likely to set off any explosives you might have right next to you, do not produce any sound/sparks/smoke when you might want to stay undetected, recoverable/reusable if the non-blown-up parts could be recovered (exercises, guerilla warfare), longer shelf-life, the only tool you need is a pocket knife, etc.