The game supports normal joysticks so using a HOTAS to joystick mapper will get you up an running.

Useful links:
https://steamcommunity.com/app/2288340/discussions/0/592943200279291133/
https://github.com/Alphonsvds/joystick-mapper
https://github.com/lanzer/AceCombat8MozaFFB

I don't have the MTQ Throttle and MRP Rudder, so the AceCombat8MozaFFB project only handle mappings on the AB6.

To make edits on button mappings, edit the file Mods\AC8HOTAS\bindings.lua, by adding lines for the throttle and pedals as separate devices. Each line points Throttle or Yaw at that device's ID and axis, for example Throttle = { device = "{throttle GUID}", input = "Z", mode = "zero_to_one" } and Yaw = { device = "{pedals GUID}", input = "Rz" }.

One catch: the README says AC8 HOTAS Support only takes over the game's built-in flight-stick profile slots, so it's not clear whether it can control a second device alongside the stick. That hasn't been tested yet.

But at the very least, you can get force feedback working on the AB6!