Ive seen this theory before
with the best pistol, youll literally be invincible ( MKII )
And would keep it, if you didnt revive your body, as you keep what you have if you do that
But its no different than receiving it when downed, i had the mark 2 in my body double once as a glitch i assumed, and i still didnt manage to revive my player, but i think just being given a standard pistol is a joke as unless you get a decent spawn you're fucked.
To clarify btw im not saying you should automatically be given the best pistol - im saying if you have a pistol better than beratta at the time of down, that is what your whos who double should be given.