You shouldn’t even try saving a guy without a mic if you don’t know what’s going on. And no matter what you should just steal the loot and leave leftovers. If he/she gets mad tell him to play solo.
I’ve had so many guys with mics on my teams where they won’t do anything and I’ll be the last guy left standing. I’ll take a person with skill and no mic over a person with a mic and no skill. I can win or go fa with just 2 in squads so it doesn’t bother me
Such an idea is more feasible in Duos since 1 v 2 isn't as hard as 1 v 4. But my experience with Squads is when one guy goes down it really handicaps the whole team. It's much harder to have three guys firing back at four guys focusing on your group so my instinct is always to try to keep everyone alive.
And after something like 800 Squads games, players with mics that have talent exist in a "once in a blue moon" category.