There are rumors that one of the plot lines in the upcoming Terminator 5 move concerns Arnold Schwarzenegger as Sarah Connor’s grandfather fighting the first generation of Terminators who traveled back into time to the late 1940s or 1950s. Supposedly, as a result of his fighting skills, Sarah’s grandfather’s image (Arnold Schwarzenegger) was used in the improved Terminator sent back to 1983.
The speculation on what sort of weapons Sarah Connor’s grandfather would use is interesting. Of course World War II weapons, M1 Garand, 1903 Springfield, various modes of the Thompson SMG, and of course a brace of Colt 1911A1 pistols may be present.
Heavier weapons could include the Lewis gun, the Browning Automatic Rifle, the 1919 and M2 Browning machineguns. Explosives could include the Bazooka, the German Panzerfaust, or the British PIAT anti-tank weapons.
I hope this plot line is a major part of the movie, but I doubt it. Audiences want to see younger actors in the reboot of this movie franchise. Still, one can hope.