go to aberration, bring a cooking pot, taming stuff and a rad suit, tame up an aberrant bear (you could do a normal bear but aberrant takes less rad dmg) in your cooking pot, make some mushroom brews(look up recipe) and feed it to the bear, run around in the red zone, you’ll find these green plants with bulbs on top of them, slap them with the bear and you get a crap ton of polymer. transfer over to whatever map you live on, you’ll probably need a second person that you can popcorn all the polymer to.