I’m not even close to following this guide: I’m too laid-back a player and don’t really care about global rankings and getting my Arc to 80, though I probably will at some point. I just came over to speak to the merits of parking in HMA and not sprinting through LMA. Thanks to Dulahan for championing the HMA part because I did that in my secondary city for a few months, getting the GBs I wanted (Chat, Arc, DT, Inno Tower, and RAH, besides the Age-appropriate basics) and then leveling them. Just moved into LMA with Chat/10, RAH/10, LoA/9, St.M/8, and I followed a blog post that tells you how to get two RQ slots in LMA.
I was thinking of blowing through and just getting the diamonds on each quest, but when I put up a bunch of Cooperages, I found that doing the 2 hampers quest also gives me enough supplies to do the Collect X supplies quest, so I complete two quests every time I collect from each pair of Cooperages. This is much better than the two slots in Colonial, IMO. The recurring quests for coins and supplies are not much higher than the HMA amounts, and once I get my St.M up to 10 I should be back where I was in HMA, but with two RQs running at once. The main downside is that the Fair Maiden quest self-completes, so I have to be careful not to accidentally collect it (thereby triggering the bonus questline) and there is always an annoying green check mark around the quest giver.
IDK if any of this matters to the Arc fiends, but if there are any other players like me reading this, I do recommend parking in HMA for a bit and then going into LMA with your classic GBs (Chat, LoA, STM) leveled all the way up and getting two RQ slots going. I guess my RAH does skew things a bit, but I don’t battle, so my city is very focused on goods so I can buy provinces and negotiate every GE Level. I have no military GBs, so I’ve got the space and RAH produces a lot of goods in addition to being a much more powerful supply booster. LMA questing seems very profitable to me, despite the size of the production buildings, if you’ve already leveled those GBs in HMA.