Since they are finally introducing skills, they should add skill specific buildings you can make related to the skill. Medic's can make a medic shack or building that slowly makes medical supplies. Mechanics can make garages that if you bring a car in you can make it into a version that has more inventory, increases the vehicles top speed, makes it more armored, and overall looks badass with the right supplies, or can slowly produce vehicle parts.

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Added in 5 hours 44 minutes 7 seconds:
Someone please comment, I want some feedback on this idea.