Hey I'm new here but I think I can help you with otto rush: this is what I've been doing with ottos last week, and I think it works pretty well at major level.
Discovery - 3 vils to wood crates, 3 vils to hunts. Explorer build a trade post (not the one beside your base), and build 1 house, and gather food until you have 800 and age up with qmaster.
Transition (WOOD TREASURES ARE CRUCIAL) - put many vils on wood until you have 250 for another trade post, and then leave like 2 or something on wood for another house later on. Once you have 250 wood, switch most vils to food, leaving 3-5 on gold.
Colonial - with age up wood research stagecoach and then barracks. (stagecoach first, trust me)
Usually my card order is 3 vils, then 700 wood (for foundry ASAP, the rest of the trade posts, and houses if you need) then 700 gold for abus (you'll need them vs a good xbow spammer) THEN silk road for the trade route. I find that silk road before those 2 cards makes the rush way too slow. To follow up I send 5 jans, 910 food, 910 gold, depends.