"Is there something I need in this bag more than I need a 3rd flashlight?" The answer is almost certainly, "yes".
This. In any
enthusiast forum that touches on survival there is a tendency to fixate on the forum's central subject - flashlights, knives, guns, radios, first aid, whatnot. The flashlights you'll almost certainly want will be compact/lightweight, durable/reliable, offer long runtime, and have some possibility of refueling or recharging - in that general order. In an actual bug-out situation you will almost surely be limiting your usage to brief short-range usage for close-up tasks and navigation. Most of us can see surprisingly well at night without a flashlight so long as there is
some ambient light - in open areas generally further and with a wider field of view.
Otherwise, your focus is should be on survival basics - water, food, protection from the elements, shelter - and items that support those needs in addition to mobility and signaling capability.