Heroes 4 – Alexander, I need help.

The responses seem a bit weak. Are there no fans of the Heroes 4 fan campaign? Listen, and here's another issue – I've included the file. There are 2 outposts with low-level creatures, and a bridge guarded by 47 knights. Do I have to spend another 4 months building up an army to break through? Was this campaign developed by some idiot?! There's no walkthrough by Alex on YouTube, and even when using a VPN to access the English version, there isn't one.

https://ibb.co/V3v9V72