I'll just leave this here. https://github .com/Sh0wdown/UnofficialCrusaderPatch/releases
A quick rundown on the patches/features:
Fixes
>Disable AI Oxen spam
>Smarter AI Trading
>AI buys enough wood so they can allways build bows
>Unlimited defensive siegeweapons on towers for AI
>AI doesnt switch target during an attack
>Improve AI repair (they didnt repair partially destroyed towers)
>Generally improve/fix AI castles (some didnt work at all)
AI Improvements
>Increase AI attack frequency
>Improve AI attack army size
>Choose which target the AI chooses (nearest, richest, weakest)
>Disable AI setting production on hold when its attacked
>Disable AI deleting lots of stuff to gain resources when its besieged
>Increase the rate at which the AI attacking force grows (so it gets bigger armies quicker)
>Increase recruiting speed
Units
>Increase Laddermen HP to take more Arrows/Bolts (still weak to spears etc)
>Increase Arab Swordmen HP to tank more bolts (still "weak" to regular infantry)
>Increase Spearman HP to tank more Arrows (still weak …)
Misc.
>Change Player color
>Make WASD work to scroll across map
>Pharmacy guy can now heal wounded (very slow tho) (position troops you want healed next to the pharmacy to make it quicker)
>Free marketplace
>No longer have to select which siege engine you want to build again and again, it stays selected
>Moads you want to build are allways visible
>Increased maximum game speed (up to 1000)
>Gates react quicker to enemies, detection range lowered though (so you cant shut down production just by having one soldier run around every so often)
>Increase overall maximum army size
>Added Spectator mode (buggy)
You can select what you want of those options and there's more detailed tooltips in the installer.