The aim is to somewhat resemble my favorite playstyle.
While I've been interested in AI's for a long time, I've hesitated to sink in the time to try scripting my self.
MrElephant set me up with something to start and I went from there. Thank you

Some parts were initially generated by Jan1302's and Hawk_Ruralist's AI Builder.
The AI has some snippets* from FireBall included and ideally will include more at some point. Thank you

Thanks as well to all other scripters for helping

* FireBall's Script Snippets: viewtopic.php?f=8&t=4174
I try to somewhat tidy up the code. My knowledge is still quite limited. I've looked a bit into other AI's, but not too much.
I hope to improve it when I'm able to take the time, however, learning and scripting is a slow process for me (maybe others are more talented).
So I'm not sure how significant any updates will come in, or if it maybe needs to wait until I retire from work some time in the distant future

Game version: AoC+UP or AoE2:DE
Civ: Mongols
Map: Tested on Arabia, can somewhat play Arena, doesn't build docks.
Difficulty: Hard (AoC+UP) / Extreme (DE) (has no difficulty scaling)
Teamgames: Not really tested. Does not trade yet. Has no proper focus-player management.
Resources: tested with Standard
Population: 200 (aims for 50 vills for now, so probably should work with reasonably lower pop)
Starting Age: Dark Age (Standard)
Viktory: Conquest (does not collect relics or build wonders)
Strategy: "Fast" castle, one TC, rush up a castle (main defense), go for Mangudai and push, while prioritize upgrades at the cost of a small eco.
(I hate too many Villagers, which mostly stress me to keep them occupied, so this AI goes only for 50 Vills for now)
Potentially important note: Apparently it can happen, that the Mangudais won't fire, when microd with the DUC-code. (thx Esty for the report)
According to Bandit1990 enabling V-Sync on DE could help. I imagine limiting FPS to 60 could help as well.
I assume, if your PC is rather slow it might also lead to an issue with the micro-code.
Same probably applies, if game-speed is 4x or faster, or if the game is speed up with CheatEngine.
(Some issues and todos are listed in the script)
Update 0.2c 03.07.2022
Main difference is FireBalls ranged micro code, with some adjustments by MrElephant (not sure which).
Update 0.2d 24.07.2022
Mainly fixed something in the ranged-micro script, which was not properly adjusted for the Mangudai play.
Update 0.3 05.09.2022
Added FireBalls deer luring/pushing snippet. Very much appreciated.
Use up-build place-control for a compact base.
Update 0.3a 11.09.2022
Mainly some fixes and changes in the hope for the better. Adjusted some stuff for better Arena playability.
Update 0.3b ~Nov 2022 | Attachement MangudAI-all-in_0.3b.zip
iirc one notable change is from the old "TSA"-code to attack-now to not interfere with FireBalls ranged-micro. Switches to TSA when > 20 or so MangudAI.
Update 0.3c 01.05.2023 (PoA submit) | Attachement MangudAI-all-in_0.3c.zip (atm not UP-compatible)
Main difference should be improved target choice for the mangudai-micro and additional castle-builders, if enemy units are in town.