@maudlin27
I finally managed to beat the AI on 15 km mapgen with 1.4 resource modifier. I think AI just misjudged the map and went into air and navy when land was key factor. Also, it didn't go pd creep when my army with ACU arrived.
And I think it undervalued reclaim and far mexes again.
https://replay.faforever.com/22706131
Edit:
Now I looked through replay.
It goes 2nd air on this map - it's strange, mexes are not that far to rush a transport to drop 1(!) eng...
1st bomber goes without scout and bombs nothing
It is building engies from 2 factories instead of 1, so has no units + is very greedy with t2 mex. I think we are too close for t2 mex.
Then it spams eng from 4 (!!!) factories even when see my units coming
Not sure why it went t2 air at all.
9:20 - it knows I have army and it has a lot of t2 engies - couple of PDs could save the game. Then units just block the PD spot for years
11:00 - it is totally losing, but could probably rush gun and t1 PDs due to good eco + go into water

@maudlin27
I finally managed to beat the AI on 15 km mapgen with 1.4 resource modifier. I think AI just misjudged the map and went into air and navy when land was key factor. Also, it didn't go pd creep when my army with ACU arrived.
And I think it undervalued reclaim and far mexes again.
https://replay.faforever.com/22706131
Edit:
Now I looked through replay.
It goes 2nd air on this map - it's strange, mexes are not that far to rush a transport to drop 1(!) eng...
1st bomber goes without scout and bombs nothing
It is building engies from 2 factories instead of 1, so has no units + is very greedy with t2 mex. I think we are too close for t2 mex.
Then it spams eng from 4 (!!!) factories even when see my units coming
Not sure why it went t2 air at all.
9:20 - it knows I have army and it has a lot of t2 engies - couple of PDs could save the game. Then units just block the PD spot for years
11:00 - it is totally losing, but could probably rush gun and t1 PDs due to good eco + go into water

https://replay.faforever.com/22701462
AI does not go t2 navy till min 16 on navy map + undervalues islands with lots of mexes - still beats me as 1.4 mass is enough... (t2 navy countered with t1 subs xd)

https://replay.faforever.com/22701325
Managed to get map control from 1.4 AI - not sure it's a bug, but interesting. Still lost

I think 1.4 and 1.5 multipliers is too much for v100+ trophies. I tried it like 5 times and it's really hard:
On 5km map the only chance is too push very early until eco advantage hits you
On 15 km mapgen AI can take really inefficient trades and still be in eco advantage
Just see how hard it was to cheese with aeon gun on 1.3 multiplier:
https://replay.faforever.com/22700773

https://replay.faforever.com/22700574
It seems that AI undervalues it's ACU in 1v1 - I managed to trade with AI that had 1.5 multiplier on 5 km map. Also, it's strange it did not block my path/focused my ACU with everything

https://replay.faforever.com/22681440
AI seems to ignore reclaim on hills. Also, it seems it largely undervalues big portions of reclaim.
In general, I think it is quite interesting to see how AI plays on high reclaim mapgen in comparison to human