Tbh i would like a pilot tool like that, just not... like that.
When you place a tool like that in, other classes can use it also. Just depends if it is a HELM tool or not.
Ide have a pilot tool that anyone would use that allows them to do something with a gun as they are outside of it.
It is just difficult to think of what convenience in such a way it is still balanced but still worthile to bring.
I think my suggestion is "Remote Control".
The gunner can then load ammo onto 2 guns, and then use 2 guns. but one at a time. He plants the tool on a gun, then goes on to his gattling. Takes out their armor, jumps out of gattling. Clicks with the pilot tool out, and suddenly hes now controling the mortar.
This is super duper game changing because now, you dont need 2 people firing 2 guns. Buffs gunners significantly, perhaps maybe buff engineers also. Difficult to place the tool anywhere tbh... Oooo how about it IS a helm tool and only the pilot can control THAT gun from the helm... ?