@Larrie Ahhhh I see. Well, that might need clarification from someone who’s better in the know than I then. V2 is very clear that the FEC’s can build minor factories (page 71 of the rulebook), so I feel it’s implied somewhere that London would be considered their Home Country. I do not see that explicitly written, however, though I could be missing it. But you’re right that here it’s stating that it does not have a Home Country.
This is just my opinion, but I’d be surprised if they couldn’t build those. The wording between V2 and V3 rules doesn’t look too drastic to make me think they changed it a ton. Point being, the fact that V2 still says they can build minors, makes me wonder if you can in V3.
If I’m completely wrong on that assumption above though, what you could do is have minor factories sent via Lend-Lease from the USA. The UK cannot send Lend-Lease to FEC or ANZAC, so that’s out of the question. But the USA still can. You could have that be the Lend-Lease option from the USA if you wanted. I think somewhere in the rules they even mention that the receiving nation (FEC in this case) could compensate the USA for some or all of the cost, if the USA player felt the cost too steep. I think the example used was for a battleship for the ANZAC, but the concept is still the same.
I’d love to hear the clarification on this point though. As I read the rules, it would seem to say that FEC cannot build any minor factories. If the rule is that they have to trace a supply path from the Home Country, but FEC doesn’t have a home country of any kind, it might seem impossible? But again, if I’m putting any stock into V2 carryovers in V3, V2 clearly says FEC can build minors.
If nothing else hopefully the USA Lend-Lease workaround helps you out!