My opinion like in most games that are solo. It should be up to the user. Since we are not really playing against another real player what's the harm besides not being realistic. All games have gimmicks or crutches. Like finding the best OP weapon to clear the map, or using a environment factor to destroy all critters and walk to the end of the scene unscathed. If a user wants a crutch its there experience. If a player wants to go realistic then go for it. I am not saying your solution is wrong or sheading bad light on your idea. Just giving my opinion.
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