Hello, the card Overcharged weapons refers to Any Ready Vehicle, perform the attack and then exhaust the Deploy card...

its obvious it was meant for the At-Sts , but what happen with the Jets which is a 2 man group? Do they both get to attack before i exhaust the card?

You play command cards with a restriction box on a single friendly figure.

Thus one Jet Trooper gets to attack and becomes weakened, then the deployment card is exhausted.