I Imagine a personal shielding would be like the ones the aliens used in mothership zeta .
Yeah something like that would do amazing things to battlefield endurance and repair logistics, unlike armor shields regenerate after all. If it's a Tesla system the suit could do anything from prematurely detonating incoming munitions, destabilizing a plasma round;s magnetic containment, to making city or bunker fighting a nightmare.
Yeah , they'd probably be nigh invulnerable to most infantry weapons unless the NCR can mass produce those pulse weapons from Big MT that can disable shields.
TBF the physics in the Falloutverse are closer to Dune/WH30k such that the semiconductors that our civilization is based on are more difficult to produce and/or work with than literally putting your brain into a jar of brain sustaining goo and controlling things with TESLA COILS!
Strangely enough I suspect keeping people that offer free medical help out of your borders is a lot harder than they think. The BOS are not handing out modern medical care to the populace after all. Plus I would think they built a robust network in Texas during the neutral years.
According to the OP the civilians are kept in 1920s tech based around supplying the military complex with food, bodies, and material. Personal liberties are probably curtailed and large scale communication and migration made extremely difficult thanks to technology restriction. I assume members of the military, which is basically the state, live extremely regimented lives as we have seen in the games rife with indoctrination.
The way they've built their settlements to foster a permanent siege mentality would strongly preclude this. Not that they don't have good reason for doing this considering they are being squeezed by both the NCR and Enclave / E-USA.
To be fair this is not a lot to go off of. With decades of R&D and fallout mad science Antares could be anything from a massive sun mirror to anti-matter munitions. All Nemesis tells us is that it might involve geothermal power via volcano.
