You could also find a wrench right away in a POI, and then you can have iron ingots on day 1.
So basically you COULD have tier 2 tools on day 1. So what?
Right. So the experiment I thought of doesn't work. And there is no hard rule to not get tier1 on day1 in A19. Which isn't surprising , there is the pistol in the toilet which would break that rule as well.
As you often do, I see you're creating a straw man argument that you (apparently) need to win.
Maybe, nobody likes to lose an argument. Maybe I just don't understand your argument fully. Maybe you were not really good at explaining what your argument is, if it really is a straw man I'm doing here.
By "scrap tools/weapons" I wasn't referring to scrap iron, that's silly of you to think that. I even gave you an example of how some of the new pipe weapons look like they were assembled using parts scrapped from other modern guns. In that case, YES, you're using parts that you NEED to loot mostly in POIs.
Ah, okay. I don't see why it is silly to think that when you ARE talking about scrap tools/weapons. But on the other hand I agree with your guess that small pipes are probably an ingredient in pipe weapons, not necessarily for your reason but because using pipes in a so called "pipe" weapon sounds very logical.
I don't look at the graphics and make conclusions from that because there are hundreds of examples in the game of graphics and ingredients being somewhat disconnected. Best example is that you drink a plastic bottle of clean water and get an emtpy glass back. Another example of the artists using their creative freedom in this game is that you can make a perfectly industrial looking scope from broken glass, duct tape, scrapped plastic and forged iron. If you press me I probably could list dozens of other examples where items or blocks look like they have stuff in them that is not part of the ingredient list or the other way round
But it sounds quite logical that the **pipe** weapons would actually include pipes and that you would need to find toilets or be lucky to find a wrench or a pipe in some waste pile.
While that means that you need to be lucky to find incredients to pipe weapons or pipe weapons themselves without going into POIs I still don't see what the problem is with going into a basic POI on day 1. And why that should constitute "a big difference" (your words).
As far as the devs go they always posited the blunderbuss as tier0 and easily available from day 1, right? And I don't have seen any indication that this will change with pipe weapons which are supposed to be the replacement for the blunderbuss. Did you?
And I'm telling you that they ALREADY need to fix the tier system.
I assume you mean the overlap problem. At least Gazz seems fine with it as it is. To fix that there are two ways which can be combined:
1) Increasing the range all tiers span over so that there is more space for the tiers
2) Compressing each individual tiers range so that each tier uses up less space
Adding another tier like a pipe tool and pipe weapon tier would need exactly the same methods. So instead of making rooms once you would need to make room twice.
You see the problem? You either get tiers so much compressed that the difference between quality 1 and quality 2 is getting very small or you get steel tools/weapons that are much less effective on the low end and/or much more OP on the high end than now.
So, since they already need to put their hands on it, it'd be the right time to also add "pipe tools" in a balanced and fun way. It's no rocket science man, you just distribute the stamina usage over a wider range, widen the block damage scale and make the crafting parts proportionally more difficult to acquire during the game for each tier.
So you already decided that it won't be fun if pipe weapons are tier0 and there are no corresponding pipe tools ? That IS rocket science, man. Or ESP.

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Me, I still don't see what pipe tools would bring to the table that isn't already served by stone tools of different quality and iron tools.