How can I make the AI build better warfleets?

[unmerged(153936)]

Other than the pirates, the AI never build Ships of the Line or even frigates. It doesn't matter if its 1730, they have 15+ million in the bank and I'm slowly decimating their fleet. They just build more cutters,xebecs and galleons. The same goes for East Indiamen, I've rarely if ever seen the AI with them either.


I've found the part of the misc. file in data where I should be able to change this, but I'm not sure how to change some of the values:

// a growing change of doing something on month change
// zerolevel is the basic chance to build something
// increment is added to basic chance every month until something is built, then back to zerolevel
// increment amount grows every year
build_something_zero_level = 1
build_something_increment_1600 = 2
build_something_increment_1800 = 8

// can use this much of balance at once (forced to 0.8 when nation has no fleets)
build_budget = 0.35

// minimum tradeship-warship ratio. 0.60 => atleast 60% of my total ships should be tradeships
build_tradeship_min_amount = 0.6


// AI selects build slot depending on wealth
// build slot defines shiptypes to build and fleet size limits

build_slot_A_require_wealth = 0
build_slot_A_shipyard_level = 2
build_slot_A_fleetsize_min = 1
build_slot_A_fleetsize_max = 3

build_slot_B_require_wealth = 300000
build_slot_B_shipyard_level = 3
build_slot_B_fleetsize_min = 2
build_slot_B_fleetsize_max = 4

build_slot_C_require_wealth = 1000000
build_slot_C_shipyard_level = 4
build_slot_C_fleetsize_min = 2
build_slot_C_fleetsize_max = 5


// percentage to build fleet (vs. upgrade)
build_fleet_prc = 65

build_slot_C only requires 1000000, yet companies with 15 times that never build anything past a galleon? And the build vs. upgrade fleet percentage- does that mean they're 65% more likely to build 5 more cheap ships than add an East Indiaman or S-O-L to an existing fleet? I can trial and error, but if someone from Nitro could explain these it would be appreciated.